CN101695071A - Registration method of internet protocol telephone terminal and equipment thereof - Google Patents
Registration method of internet protocol telephone terminal and equipment thereof Download PDFInfo
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- CN101695071A CN101695071A CN200910235321A CN200910235321A CN101695071A CN 101695071 A CN101695071 A CN 101695071A CN 200910235321 A CN200910235321 A CN 200910235321A CN 200910235321 A CN200910235321 A CN 200910235321A CN 101695071 A CN101695071 A CN 101695071A
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Abstract
The invention provides a registration method of an internet protocol telephone terminal and equipment thereof. The registration method includes that a first IP terminal sends SIP registration messages carrying a first IP address and a second IP address before and after changing to a corresponding subscriber exchanger IPPBX based on the IP when detecting that a self IP address is changed, the SIP registration messages are used for indicating the IPPBX to cancel registration information of the first IP telephone terminal according to the first IP address and rebuild registration information of the first IP telephone terminal according to the second IP address. The registration method and the equipment thereof can timely update the registration information on the IPPBX after the IP addresses of the IP telephone terminal are changed.
Description
Technical field
The present invention relates to a kind of Internet protocol (IP, Internet Protocol) telephony field, be specifically related to a kind of register method and equipment thereof of IP phone terminal.
Background technology
Along with IP network use increasingly extensive, internet protocol voice (VoIP, Voice over InternetProtocol) also more and more is applied.In various VoIP networkings, the IP phone terminal is commonplace in conjunction with the application of IP-based user's private branch exchange system (IPPBX, IP Private Branch eXchange) networking.As shown in Figure 1, IPPBX, console (IP phone console) and a plurality of IP phone terminal all are connected in the local area network (LAN) in the above-mentioned networking mode, the IP phone terminal all needs to be registered on the IPPBX, IPPBX obtains and preserves the log-on message of each IP phone terminal by register flow path, comprise the IP address and the Subscriber Number of IP phone terminal.
Because the quantity of IP phone terminal may be a lot, management for convenience, adopting dynamic host allocation protocol (Dynamic Host Configuration Protocol) server in the networking mode shown in Figure 1 is IP phone terminal and console dynamic assignment IP address.In general, as long as the address pool of Dynamic Host Configuration Protocol server does not change, behind the lease expires of the IP address of IP phone terminal, when the IP phone terminal was initiated the IP application IP addresses again, Dynamic Host Configuration Protocol server all can continue to distribute to this IP phone terminal with the IP address of distributing to this IP phone terminal originally as far as possible.
But, if the IP address pool of Dynamic Host Configuration Protocol server changes or other reason causes the IP address of IP phone terminal to make a change, then following problem can appear: for example, after IP phone terminal 1 has been assigned to new IP address, but IPPBX goes up the still log-on message of the old IP address of this IP phone terminal 1 of record.If have IP phone terminal 2 call ip phone terminals 1 this moment, then IPPBX can't be correctly forward call to IP phone terminal 1, and then can cause call failure.
Summary of the invention
Technical problem to be solved by this invention provides a kind of register method and equipment thereof of IP phone terminal, after changing in order to the IP address in the IP phone terminal, upgrades the log-on message on the IPPBX in time.
For solving the problems of the technologies described above, it is as follows to the invention provides scheme:
A kind of register method of IP phone terminal, the IP address of described IP phone terminal is by the Dynamic Host Configuration Protocol server dynamic assignment, and described register method comprises:
The first IP phone terminal is after detecting self IP address and changing, IP-based subscriber exchange IPPBX to correspondence sends the SIP registration message that carries first, second IP address before and after changing, described SIP registration message is used to indicate the log-on message of described IPPBX according to the described first IP phone terminal of a described IP address cancel, and, rebulid the log-on message of the described first IP phone terminal according to described the 2nd IP address.
Preferably, in the above-mentioned register method,
After detecting self IP address and changing, the described first IP phone terminal is further before sending described SIP registration message, send the SIP notice message that carries a described IP address to described IPPBX, described SIP notice message is used to indicate described IPPBX according to a described IP address, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation.
Preferably, in the above-mentioned register method, also comprise:
The described first IP phone terminal receives the sip subscribe request message, and returns the SIP notice message of confirming described sip subscribe request to described IPPBX during the request in accepting described sip subscribe request message;
Wherein, described sip subscribe request message is that described IPPBX is after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, to the pull subscription message of correlation behavior of the described first IP phone terminal of the described first IP phone terminal being used to of sending; The SIP notice message of the described sip subscribe request of described affirmation is used to indicate described IPPBX to upgrade and activates the relevant subscribing relationship of the described and described first IP phone terminal.
Preferably, in the above-mentioned register method,
When the described first IP phone terminal also has the very first time of being scheduled at the lease expires apart from a described IP address, if carry out session with the second IP phone terminal, then further send a sip request message by described IPPBX to the described second IP phone terminal, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
After sending described SIP registration message, the described first IP phone terminal receives the sip response message that described IPPBX returns behind the log-on message that rebulids the described first IP phone terminal;
After receiving described sip response message, described first IP phone terminal and the described second IP phone terminal heavy invitation message of SIP by carrying the IP address before and after changing is alternately upgraded the RTP socket of the described session of preservation separately, recovers described session.
Preferably, in the above-mentioned register method,
The described second IP phone terminal is after receiving described sip request message, further judge whether self IP address can change in second time of being scheduled to, described predetermined second time is greater than the described predetermined very first time: if, the then described second IP phone terminal is upgraded self IP address after the described predetermined very first time, and after self IP address is upgraded, carry the 3rd of renewal front and back to described IPPBX transmission, the 2nd SIP registration message of the 4th IP address, described the 2nd SIP registration message is used to indicate the log-on message of described IPPBX according to the described second IP phone terminal of described the 3rd IP address cancel, and, rebulid the log-on message of the described second IP phone terminal according to described the 4th IP address.
Preferably, in the above-mentioned register method, the heavy invitation message of described SIP is sent by the founder of described session.
The present invention also provides the register method of another kind of IP phone terminal, and the IP address of described IP phone terminal is by the Dynamic Host Configuration Protocol server dynamic assignment, and described register method comprises:
The SIP registration message that IP-based subscriber exchange IPPBX receives is that the first IP phone terminal sends after self IP address modification, carry first, second IP address before and after changing;
Described IPPBX is according to an IP address of carrying in the described SIP registration message, nullify the log-on message of the described first IP phone terminal, and, rebulid the log-on message of the described first IP phone terminal according to the 2nd IP address of carrying in the described SIP registration message.
Preferably, in the above-mentioned register method, also comprise:
Described IPPBX further receives change in self IP address back and sending the SIP notice message that sends before the described SIP registration message of the described first IP phone terminal, and according to a described IP address of carrying in the described SIP notice message before changing, the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation;
And, after the log-on message that rebulids the described first IP phone terminal, described IPPBX is further according to the relevant subscribing relationship of the described and described first IP phone terminal, send the sip subscribe request message of the correlation behavior of the described first IP phone terminal that is used to pull subscription to the described first IP phone terminal, and after confirming the SIP notice message of described sip subscribe request message in being used to of receiving that the described first IP phone terminal returns, according to described the 2nd IP address, upgrade and the relevant subscribing relationship of the described first IP phone terminal, and the state of subscribing relationship that again will be relevant with the described first IP phone terminal is arranged to activate.
The present invention also provides a kind of first IP phone terminal, and the IP address of the described first IP phone terminal is by the Dynamic Host Configuration Protocol server dynamic assignment, and the described first IP phone terminal comprises:
Detecting unit, whether an IP address that is used to detect this IP phone terminal changes;
Registering unit, be used for after this IP phone terminal detects self IP address and changes, IP-based subscriber exchange IPPBX to correspondence sends the SIP registration message that carries first, second IP address before and after changing, described SIP registration message is used to indicate the log-on message of described IPPBX according to described this IP phone of IP address cancel terminal, and, rebulid the log-on message of this IP phone terminal according to described the 2nd IP address.
Preferably, in the above-mentioned first IP phone terminal,
Described registering unit, also be used for before sending described SIP registration message, send the SIP notice message that carries a described IP address to described IPPBX, described SIP notice message is used to indicate described IPPBX according to a described IP address, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation.
Preferably, in the above-mentioned first IP phone terminal, also comprise:
The subscribing relationship recovery unit is used to receive the sip subscribe request message, and returns the SIP notice message of confirming described sip subscribe request to described IPPBX during the request in accepting described sip subscribe request message;
Wherein, described sip subscribe request message is that described IPPBX is after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, to the pull subscription message of correlation behavior of the described first IP phone terminal of the described first IP phone terminal being used to of sending; The SIP notice message of the described sip subscribe request of described affirmation is used to indicate described IPPBX to upgrade and activates the relevant subscribing relationship of the described and described first IP phone terminal.
Preferably, in the above-mentioned first IP phone terminal, also comprise:
The prompting message transmitting element, be used for when the lease expires apart from an IP address also has the very first time of being scheduled to, if this IP phone terminal is carried out session with the second IP phone terminal, then send a sip request message by described IPPBX to the described second IP phone terminal, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
The response receiving element is used to receive the sip response message that described IPPBX returns behind the log-on message that rebulids this IP phone terminal;
The session recovery unit, be used for after described response receiving element receives described sip response message, with the SIP heavy invitation message of the described second IP phone terminal by carrying the IP address before and after changing alternately, the RTP socket that the heavy invitation message of described SIP is used to upgrade the described session that this IP phone terminal and the second IP phone terminal preserve separately recovers described session.
The present invention also provides a kind of second IP phone terminal, and the IP address of the described second IP phone terminal is by the Dynamic Host Configuration Protocol server dynamic assignment, and the described second IP phone terminal comprises:
Receiving element, be used to receive the sip request message that the first IP phone terminal sends by corresponding IPPBX, described sip request message is that the described first IP phone terminal is when the lease expires of an IP address of the current use of distance is scheduled to the very first time in addition, judge with the described second IP phone terminal and carry out sending after the session, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
The session processing unit, be used to receive that the described first IP phone terminal is transmitted by described IPPBX, as to carry the IP address of the described first IP phone terminal change front and back heavy invitation message of SIP, and, upgrade the RTP socket of the described session of this IP phone terminal preservation according to the heavy invitation message of described SIP;
The heavy invitation message of described SIP is the described first IP phone terminal after detecting self IP address and changing, carry first of change front and back to described IPPBX transmission, the SIP registration message of the 2nd IP address, and receive that described IPPBX sends behind the sip response message that returns behind the log-on message that rebulids the described first IP phone terminal, wherein, described SIP registration message is used to indicate the log-on message of described IPPBX according to the described first IP phone terminal of a described IP address cancel, and, rebulid the log-on message of the described first IP phone terminal according to described the 2nd IP address.
Preferably, the above-mentioned second IP phone terminal also comprises:
Judging unit, be used for after described receiving element receives described sip request message, judge whether self IP address can change in predetermined second time, described predetermined second time is greater than the described predetermined very first time: if, then after the described predetermined very first time, upgrade self IP address, and after self IP address is upgraded, carry the 3rd of renewal front and back to described IPPBX transmission, the 2nd SIP registration message of the 4th IP address, described the 2nd SIP registration message is used to indicate the log-on message of described IPPBX according to the described second IP phone terminal of described the 3rd IP address cancel, and, rebulid the log-on message of the described second IP phone terminal according to described the 4th IP address.
The present invention also provides a kind of IP-based subscriber exchange IPPBX, comprising:
Receiving element is used to receive first IP phone terminal SIP registration message that send, that carry first, second IP address before and after changing after self IP address modification;
The register update unit, be used for the IP address of carrying according to described SIP registration message, nullify the log-on message of the described first IP phone terminal, and, rebulid the log-on message of the described first IP phone terminal according to the 2nd IP address of carrying in the described SIP registration message.
Preferably, among the above-mentioned IP PBX,
Described receiving element also is used to receive change in self IP address back and sending the SIP notice message that sends before the described SIP registration message of the described first IP phone terminal;
Described IPPBX also comprises:
The subscribing relationship updating block is used for carrying the preceding described IP address of change according to described SIP notice message, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation; And, after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, send the sip subscribe request message of the correlation behavior of the described first IP phone terminal that is used to pull subscription to the described first IP phone terminal, and after confirming the SIP notice message of described sip subscribe request message in being used to of receiving that the described first IP phone terminal returns, according to described the 2nd IP address, upgrade and the relevant subscribing relationship of the described first IP phone terminal, and the state of subscribing relationship that again will be relevant with the described first IP phone terminal is arranged to activate.
From the above as can be seen, the register method of IP phone terminal provided by the invention and equipment thereof, allow based on the IP phone terminal of Dynamic Host Configuration Protocol server management ip address when the IP address modification, can be updated in log-on message and subscription information on the IPBBX immediately, and under the situation that the existence of calling out is arranged, do not need on-hook to call again, but only after of short duration voice interruption, recover dial-up at once.
Description of drawings
Fig. 1 is a kind of networking structure schematic diagram of the VoIP of prior art;
The schematic flow sheet of the register method of the IP phone terminal that Fig. 2 provides for the embodiment of the invention 1;
The schematic flow sheet of the register method of the IP phone terminal that Fig. 3 provides for the embodiment of the invention 2;
The schematic flow sheet of the register method of the IP phone terminal that Fig. 4 provides for the embodiment of the invention 3;
The flow chart of the register method of the another kind of IP phone terminal that Fig. 5 provides for the embodiment of the invention 3;
Fig. 6 is the structural representation of the described first IP phone terminal of the embodiment of the invention;
Fig. 7 is the structural representation of the described second IP phone terminal of the embodiment of the invention;
Fig. 8 is the structural representation of the described IPPBX of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further by specific embodiment.
＜embodiment 1 〉
The register method of the described IP phone terminal of the embodiment of the invention is applied in the network environment shown in Figure 1.In the network environment shown in Figure 1, the IP address of all IP phone terminals is all distributed by Dynamic Host Configuration Protocol server.As shown in Figure 2, the described register method of present embodiment may further comprise the steps:
Here, the IPPBX of described correspondence is the IPPBX of the first IP phone endpoint registration.The IP address of the first IP phone terminal is by the Dynamic Host Configuration Protocol server dynamic assignment.Behind the lease expires of the IP address of current use, the first IP phone terminal will be initiated the DHCP discovery procedure, Dynamic Host Configuration Protocol server has been the first IP phone terminal distribution again new IP address, thus make the IP address of the IP phone terminal of winning that change take place.
Here, described SIP registration message is used to indicate the log-on message of described IPPBX according to the described first IP phone terminal of a described IP address cancel, and according to described the 2nd IP address, rebulids the log-on message of the described first IP phone terminal.Suppose that an IP address is 172.31.89.197, the 2nd IP address is 172.31.89.207, and the first IP phone terminal is after adhering to the IP address modification of oneself, and a kind of possible form of the header field of the SIP registration message that sends is as follows:
Request-Line:REGISTER?sip:172.31.89.18?SIP/2.0
Message?Header
+V:SIP/2.0/UDP?172.31.89.207:5060
+t:<sip:4001@172.31.89.18>
+f:<sip:4001@172.31.89.18>
i:b60db428-01d6-20c2-13c6-00e0bb22b93e
+CSeq:5REGISTER
Ma×-Forwards:70
-m:<sip:4001@172.31.89.207:5060>；dt＝548
-Contact?Bindi?ng:
<sip:4001@172.31.89.207:5060>；dt＝548
-URI:<sip:4001@172.31.89.207:5060>
SIP?contact?address:sip:4001@172.31.89.207:5060
-m:<sip:4001@172.31.89.197:5060>；dt＝548；expires＝0
-Contact?Binding:
<sip:4001@172.31.89.197:5060>；dt＝548expires＝0
-URI:<sip:4001@172.31.89.197:5060>
SIP?contact?address:sip:4001@172.31.89.197:5060
Expires:3600
Carry two Contact header fields (" m " field) in this SIP registration message, the information that wherein comprises the 2nd IP address in first Contact header field, the information that comprises an IP address in second Contact header field, the difference of two Contact header fields is, second Contact header field also additionally comprises the description of " expires=0 ", and IPPBX nullifies original log-on message in order to indication.
In the above-mentioned flow process, in order to reduce the mutual of message, save bandwidth and IPPBX load of server, present embodiment uses a SIP registration message to carry two Contact header fields, comprise first, second IP address before and after changing respectively, nullify and registration for described IPPBX.Certainly, also can use two SIP registration messages, carry described first, second IP address respectively.
From above flow process as can be seen, the IP phone terminal sends the SIP registration message to IPPBX at once after self IP address changes, upgraded the log-on message on the IPPBX in time.With respect to prior art, present embodiment needn't wait for that the IP phone terminal initiates registration to IPPBX again when next registration period, but upgrade the log-on message of the IP phone terminal on the IPPBX in real time, overcome exist in the prior art caused the problem of call failure because of log-on message loses efficacy.
＜embodiment 2 〉
In the present embodiment, there is subscribing relationship in advance between the first IP phone terminal and other equipment.For example, as shown in Figure 3: step 301～304: console is by sending sip subscribe request (Subscribe) message to IPPBX, the correlation behavior (as on-hook, off-hook etc.) of the first IP phone terminal that pulls subscription, IPBBX is transmitted to the first IP phone terminal with this sip subscribe message; First IP phone terminal announcement IPPBX returns SIP announcement (Notity) message to console, and this SIP notice message is used to represent that the affirmation to above-mentioned sip subscribe request message responds.Like this, IPPBX has just set up the subscribing relationship between the first IP phone terminal and the console.
Continuation is with reference to Fig. 3, and in this case, the register method of the described IP phone terminal of present embodiment may further comprise the steps:
Step 305, the IP address of the first IP phone terminal have been distributed new IP address by Dynamic Host Configuration Protocol server behind lease expires.The first IP phone terminal detects self IP address and changes, and for example self IP address becomes the 2nd IP address by an IP address modification.
Step 306, because change has taken place in the IP address of the first IP phone terminal, therefore the first IP phone terminal should notify the original subscribing relationship of IPPBX to lose efficacy: the first IP phone terminal sends the SIP notice message that carries a described IP address to IPPBX, this SIP notice message is used to indicate described IPPBX according to a described IP address, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation; The IP address that described IPPBX carries according to this SIP notice message, the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation.A kind of possible form of the header field of this SIP notice message is as follows:
Request-Line:INVITE?sip:3ComCallProcessor@172.31.89.18SIP/2.0
Message?Header
-v:SIP/2.0/uDP?172.31.89.207:5060
Transport:UDP
Sent-by?Address:172.31.89.207
-t:″te″<sip:4000@172.31.89.18；user＝phone>；t?ag＝0f349468-01d6-1102-13d1-00e0bb2a5c3e
SIP?Display?info:″te″
SIP?to?address:sip:4000@172.31.89.18
SIP?tag:0f349468-01d6-1102-13d1-00e0bb2a5c3e
-f:
<sip:4001@172.31.89.197>；tag＝0f139ee8-01d6-1102-13c7-00e0bb22b93e
SIP?from?address:sip:4001@172.31.89.197
SIP?tag:0f139ee8-01d6-1102-13c7-00e0bb22b93e
i:808ee23d-d269-de11-a020-fc702296b4f1
-CSeq:10002INVITE
Sequence?Number:10002
Method:INVITE
Ma×-Forwards:70
-m:<sip:4001@172.31.89.207:5060>
-Contact?Binding:<sip:4001@172.31.89.207:5060>
-uRI:<sip:4001@172.31.89.207:5060>
SIP?cont?act?address:sip:4001@172.31.89.207:5060
In the above-mentioned message, " subscription-state:terminated " represented the state of original subscribing relationship is arranged to unactivated state.
Step 307, the first IP phone terminal send the SIP registration message that carries first, second IP address before and after changing to IPPBX; IPPBX nullifies the log-on message of the described first IP phone terminal according to an IP address of carrying in this SIP registration message, again according to the 2nd IP address of carrying in this SIP registration message, rebulids the log-on message of the described first IP phone terminal.
Step 308, IPPBX returns a sip response message (200OK message) to the first IP phone terminal, and so far this flow process finishes.
In the present embodiment, the IP phone terminal is after self IP address modification, sending one immediately is used to indicate IPPBX that the subscribing relationship relevant with self is arranged to unactivated SIP notice message, make original subscribing relationship in time lose efficacy, and then send the SIP registration message of cancellation and registration updating information to IPPBX.
In the present embodiment, after above-mentioned steps 308, can also comprise:
Step 309, IPPBX is according to the relevant subscribing relationship of the described and described first IP phone terminal, sends the sip subscribe request message of the correlation behavior of the described first IP phone terminal that is used to pull subscription to the described first IP phone terminal;
Step 310, behind the sip subscribe request message that sends in the described first IP phone terminal receiving step 309, and returning the SIP notice message of confirming described sip subscribe request to described IPPBX during the request in accepting described sip subscribe request message, the SIP notice message of the described sip subscribe request of described affirmation is used to indicate described IPPBX to upgrade and activates the relevant subscribing relationship of the described and described first IP phone terminal; IPPBX according to described the 2nd IP address, upgrades and the relevant subscribing relationship of the described first IP phone terminal after receiving above-mentioned SIP notice message, and the state of subscribing relationship that again will be relevant with the described first IP phone terminal is arranged to activate.
Like this, by above-mentioned steps 309～310, IPPBX can upgrade original subscribing relationship further according to the new IP address of this IP phone terminal behind the log-on message that upgrades this IP phone terminal, and then the subscribing relationship after upgrading is activated.Above-mentioned processing mode makes that the subscribing relationship relevant with the IP phone terminal can in time obtain upgrading, and does not need relevant subscriber to resend subscribe message.
＜embodiment 3 〉
The IP phone terminal is after having set up session with other terminal, and the RTP between the terminal (RTP, Real Time Protocol) message is directly to send to the session opposite end.For example, all establish the RTP socket (Socket) of this session on the terminal at session two ends.Preserve session both sides' information such as IP address, port numbers among the RTP Socket, conversational terminal notification invoke RTP Socket sends to the session opposite end with the RTP message.Therefore, if change has taken place the IP phone terminal in the IP address in the process of session carrying out with other terminal, then can still be bundled on the old IP address because of RTP Socket, cause voice flow correctly not send, interrupting appears in voice communication.
Prior art is when the problems referred to above occurring, and conversation can't continue, and the calling and called both sides can only on-hook, and after waiting for that the IP phone terminal re-registers, could make a call once more.If the registration period of IP phone terminal is 3600 seconds, this just meaned in one hour all cannot make a phone call.
Present embodiment proposes a kind of register method of IP phone terminal, the described first IP phone terminal is when also having predetermined very first time apart from self IP address lease expires, judge currently whether carry out session with the second IP phone terminal, if, the then described first IP phone terminal sends a sip request message (specifically can adopt the SIP INFO) by described IPPBX to the described second IP phone terminal, and described sip request message indicates the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time; And, the IP address of the described first IP phone terminal change and described IPPBX re-register finish after, described first IP phone terminal and the described second IP phone terminal the heavy invitation message (RE-Invite) of SIP by carrying the IP address before and after changing alternately, upgrade the RTP Socket of the described session of preserving separately, recover described session, thereby make the user needn't hang up ongoing conversation, and recover the normal transmission of Media Stream in the short period of time.
Concrete, the register method of the described IP phone terminal of present embodiment as shown in Figure 4, comprising:
Step 401, what suppose the current use of the first IP phone terminal is an IP address, the lease duration is T.When the first IP phone terminal reaches certain hour (as 7T/8) at lease, broadcast transmission DHCP Request message, this message is used to ask to continue to prolong the lease of an IP address; If do not receive the response message that Dynamic Host Configuration Protocol server returns, represent that then Dynamic Host Configuration Protocol server refuses the first IP phone terminal and continue to use an IP address, the first IP phone terminal need be asked the IP address again behind lease expires.Here, suppose the response that the first IP phone terminal is not received Dynamic Host Configuration Protocol server, promptly the IP address of the first IP phone terminal will change behind lease expires.
Step 402～405, the first IP phone terminal can be provided with a timer, this timer will be overtime when also having the very first time of being scheduled to apart from an IP address lease expires, for example in 10 seconds before lease expires, this timer expiry, this moment, the first IP phone terminal sent a SIP INFO by IPPBX to the second IP phone terminal, this SIPINFO message can be carried the flag bit that a sign DHCP causes the change of IP address, is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time.
After the second IP phone terminal receives this SIP INFO, if support the processing of above-mentioned flag bit, then can return a 200OK response message, and in this response message, above-mentioned flag bit is responded point out the local user simultaneously because the IP address modification will cause conversing short interruption and point out the user not want on-hook.After the first IP phone terminal is received above-mentioned response message, find that the second IP phone terminal responds above-mentioned flag bit, the short interruption of therefore also pointing out the local user because the IP address modification will cause conversing also points out the user not want on-hook.Concrete prompting mode can be display message prompting or the indicator light prompting on voice suggestion, the display screen.
Step 406～410, the first IP phone terminal is behind the lease expires of an IP address, restart the DHCP discovery procedure, by obtaining newly assigned the 2nd IP address alternately with Dynamic Host Configuration Protocol server, and utilize the gratuitous ARP request message to confirm that the 2nd IP address that regains is effective, promptly when gratuitous ARP is overtime, do not receive the message of any address conflict;
Step 411～412, identical with step 21～22 of embodiment 1, the first IP phone terminal sends the SIP registration message to IPPBX after detecting the IP address and being the 2nd IP address by an IP address modification, register again.
Step 413～416, the first IP phone terminal is after receiving the sip response message that indication that IPPBX returns is succeeded in registration, send the heavy invitation message of SIP by IPPBX to the second IP phone terminal, the heavy invitation message of this SIP carries a described IP address and the 2nd IP address, is used to indicate the IP address of the described first IP phone terminal to be updated to the 2nd IP address by an IP address.A kind of possible form of header field of the heavy invitation message of this SIP is as follows:
Request-Line:NOTIFY?sip:3ComCallProcessor@172.31.89.18SIP/2.0
Message?Header
+V:SIP/2.0/UDP?172.31.89.207:5060
+t:<sip:172.31.89.18>；tag＝00dfb71a-d269-de11-a002-a134ba0a4457
+f:″er_4001″<sip:4001@172.31.89.197>
i:00dfb71a-d269-de11-a001-a?5f40f0dbb60
+Cseq:7Notify
Max-Forwards:70
-m:<sip:4001@172.31.89.197:5060>
-Contact?Binding:<sip:4001@172.31.89.197:5060>
-URI:<sip:4001@172.31.89.197:5060>
SIP?contact?address:sip:4001@172.31.89.197:5060
User-Agent:3Com-SIP-Phone/V7.2.48.51
Event:line-status-event
Subscription-State:terminated
c:application/line-status
Content-Length:37
In the above-mentioned message, carry the 2nd IP address " 172.31.89.207 " after the renewal in the Contact header field, From header field (i.e. " f " field) carries the IP address " 172.31.89.197 " before upgrading.Can identify the attach most importance to session of invitation message and this weight invitation message correspondence of above-mentioned message from the header field of this message.The second IP phone terminal will be according to the 2nd IP address, upgrade the RTPSocket (the 2nd IP address is revised as from an IP address in the IP address of session far-end) of local described session of preserving, and return the response message of a 200OK by IPPBX to the first IP phone terminal; After the first IP phone terminal is received the response message of above-mentioned 200OK, the also RTP Socket of the described session that this locality the is preserved IP address of script for story-telling end (will be revised as the 2nd I P address) from an IP address.So far, the transmission of RTP message will recover normally, and the session both sides can proceed conversation.
From the above as can be seen, present embodiment can change the IP address of the first IP phone terminal in the process that the first IP phone terminal and other terminal are conversed, and makes session to have no progeny in of short duration to recover rapidly.Like this, the session both sides needn't dial again in on-hook, and are convenient for users.The time of above-mentioned interruption depends primarily on the time-out time of gratuitous ARP request, and other message interaction process is consuming time can be ignored.
If the second IP phone terminal is not supported the special processing of present embodiment, then in above-mentioned steps 402～405, the second IP phone terminal is after receiving the SIP INFO, will return a 200OK response message, can not respond in this response message above-mentioned flag bit, therefore the first IP phone terminal will be pointed out the user because the IP address modification will cause dropped calls after receiving this response message, please dial after a while again.
In the above-mentioned steps 403, the second IP phone terminal is after receiving described sip request message, the IP address of learning the first IP phone terminal will be changed after the predetermined very first time (as 10 seconds), if the IP address of the second IP phone terminal also can change after predetermined second time (for example at 10 minutes), present embodiment can allow the second IP phone terminal and the first IP phone terminal together upgrade self IP address this moment, in order to avoid dropped calls takes place twice at short notice, influence user's use experience.Here, described predetermined second time is greater than the described predetermined very first time.
For this reason, please refer to Fig. 5, present embodiment further utilizes the 200OK response message that sends in step 404～405, indicates the IP address of the second IP phone terminal also will change, and points out the user not want on-hook simultaneously when dropped calls.Like this, after the predetermined very first time, first, second IP phone terminal all begins to start the DHCP discovery procedure (as the step 406 among Fig. 5～410, step 506～510), upgrade its own IP address, the IP address of supposing the first IP phone terminal is updated to the 2nd IP address by an IP address, and the IP address of the first IP phone terminal is updated to the 4th IP address by the 3rd IP address.Then, the second IP phone terminal is finished similarly re-registering on IPPBX by step 511～512, to upgrade the relevant information that IPPBX goes up the second IP phone terminal of preserving.Follow-up flow process is same as shown in Figure 4, by step 413～416, with the heavy invitation message of the second IP phone terminal interaction SIP, rebulids described session by the first IP phone terminal.Here, can also arrange of the founder transmission of the heavy invitation message of described SIP by described session.
＜embodiment 4 〉
At last, based on the register method of the IP phone terminal that above embodiment provided, present embodiment provides a kind of equipment that is used to implement above-mentioned register method, comprises first, second IP phone terminal and IPPBX.
Wherein, as shown in Figure 6, the first IP phone terminal that present embodiment provides, wherein, the IP address of the described first IP phone terminal is by the Dynamic Host Configuration Protocol server dynamic assignment, and the described first IP phone terminal specifically comprises:
Detecting unit, whether an IP address that is used to detect this IP phone terminal changes;
Registering unit, be used for after an IP address detected of this IP phone terminal changes to self IP address, IPPBX to correspondence sends the SIP registration message that carries first, second IP address before and after changing, described SIP registration message is used to indicate the log-on message of described IPPBX according to described this IP phone of IP address cancel terminal, and, rebulid the log-on message of this IP phone terminal according to described the 2nd IP address.
Preferably, described registering unit, also be used for before sending described SIP registration message, send the SIP notice message that carries a described IP address to described IPPBX, described SIP notice message is used to indicate described IPPBX according to a described IP address, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation.
Preferably, described IP phone terminal also comprises:
The subscribing relationship recovery unit is used to receive the sip subscribe request message, and returns the SIP notice message of confirming described sip subscribe request to described IPPBX during the request in accepting described sip subscribe request message;
Wherein, described sip subscribe request message is that described IPPBX is after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, to the pull subscription message of correlation behavior of the described first IP phone terminal of the described first IP phone terminal being used to of sending; The SIP notice message of the described sip subscribe request of described affirmation is used to indicate described IPPBX to upgrade and activates the relevant subscribing relationship of the described and described first IP phone terminal.
The prompting message transmitting element, be used for when the lease expires apart from an IP address also has the very first time of being scheduled to, if this IP phone terminal is carried out session with the second IP phone terminal, then send a sip request message by described IPPBX to the described second IP phone terminal, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
The response receiving element is used to receive the sip response message that described IPPBX returns behind the log-on message that rebulids this IP phone terminal;
The session recovery unit, be used for after described response receiving element receives described sip response message, with the SIP heavy invitation message of the described second IP phone terminal by carrying the IP address before and after changing alternately, the RTP socket that the heavy invitation message of described SIP is used to upgrade the described session that this IP phone terminal and the second IP phone terminal preserve separately recovers described session.
As shown in Figure 7, the second IP phone terminal that present embodiment provides, the IP address of the described second IP phone terminal is by the Dynamic Host Configuration Protocol server dynamic assignment, and the described second IP phone terminal specifically comprises:
Receiving element, be used to receive the sip request message that the first IP phone terminal sends by corresponding IPPBX, described sip request message is that the described first IP phone terminal is when the lease expires of an IP address of the current use of distance is scheduled to the very first time in addition, judge with the described second IP phone terminal and carry out sending after the session, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
The session processing unit, be used to receive that the described first IP phone terminal is transmitted by described IPPBX, as to carry the IP address of the described first IP phone terminal change front and back heavy invitation message of SIP, and, upgrade the RTP socket of the described session of this IP phone terminal preservation according to the heavy invitation message of described SIP;
Wherein, the heavy invitation message of described SIP is the described first IP phone terminal after detecting self IP address and changing, carry first of change front and back to described IPPBX transmission, the SIP registration message of the 2nd IP address, and receive that described IPPBX sends behind the sip response message that returns behind the log-on message that rebulids the described first IP phone terminal, wherein, described SIP registration message is used to indicate the log-on message of described IPPBX according to the described first IP phone terminal of a described IP address cancel, and, rebulid the log-on message of the described first IP phone terminal according to described the 2nd IP address.
Preferably, the above-mentioned second IP phone terminal also comprises:
Judging unit, be used for after described receiving element receives described sip request message, judge whether self IP address can change in predetermined second time, described predetermined second time is greater than the described predetermined very first time: if, then after the described predetermined very first time, upgrade self IP address, and after self IP address is upgraded, carry the 3rd of renewal front and back to described IPPBX transmission, the 2nd SIP registration message of the 4th IP address, described the 2nd SIP registration message is used to indicate the log-on message of described IPPBX according to the described second IP phone terminal of described the 3rd IP address cancel, and, rebulid the log-on message of the described second IP phone terminal according to described the 4th IP address.
As shown in Figure 8, the IPPBX that present embodiment provides comprises:
Receiving element is used to receive first IP phone terminal SIP registration message that send, that carry first, second IP address before and after changing after self IP address modification;
The register update unit, be used for the IP address of carrying according to described SIP registration message, nullify the log-on message of the described first IP phone terminal, and, rebulid the log-on message of the described first IP phone terminal according to the 2nd IP address of carrying in the described SIP registration message.
Preferably, described receiving element also is used to receive change in self IP address back and sending the SIP notice message that sends before the described SIP registration message of the described first IP phone terminal.Described IPPBX also comprises:
The subscribing relationship updating block is used for carrying the preceding described IP address of change according to described SIP notice message, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation; And, after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, send the sip subscribe request message of the correlation behavior of the described first IP phone terminal that is used to pull subscription to the described first IP phone terminal, and after confirming the SIP notice message of described sip subscribe request message in being used to of receiving that the described first IP phone terminal returns, according to described the 2nd IP address, upgrade and the relevant subscribing relationship of the described first IP phone terminal, and the state of subscribing relationship that again will be relevant with the described first IP phone terminal is arranged to activate.
In sum, the register method and the equipment of the IP phone terminal that the embodiment of the invention provides, after the IP of IP phone terminal address modification, the related registration information on the IPPBX that upgraded in time, and can upgrade the subscribing relationship relevant with this IP phone terminal.And when the IP address modification occurred in the IP phone terminal call process, the described register method of present embodiment made the IP phone terminal need not on-hook, only needed can recover conversation after the short interruption, had improved the hommization degree that IP phone is used.
The above only is embodiments of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. the register method of an IP phone terminal, the IP address of described IP phone terminal be is characterized in that by the Dynamic Host Configuration Protocol server dynamic assignment described register method comprises:
The first IP phone terminal is after detecting self IP address and changing, IP-based subscriber exchange IPPBX to correspondence sends the SIP registration message that carries first, second IP address before and after changing, described SIP registration message is used to indicate the log-on message of described IPPBX according to the described first IP phone terminal of a described IP address cancel, and, rebulid the log-on message of the described first IP phone terminal according to described the 2nd IP address.
2. register method as claimed in claim 1 is characterized in that,
After detecting self IP address and changing, the described first IP phone terminal is further before sending described SIP registration message, send the SIP notice message that carries a described IP address to described IPPBX, described SIP notice message is used to indicate described IPPBX according to a described IP address, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation.
3. register method as claimed in claim 2 is characterized in that, also comprises:
The described first IP phone terminal receives the sip subscribe request message, and returns the SIP notice message of confirming described sip subscribe request to described IPPBX during the request in accepting described sip subscribe request message;
Wherein, described sip subscribe request message is that described IPPBX is after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, to the pull subscription message of correlation behavior of the described first IP phone terminal of the described first IP phone terminal being used to of sending; The SIP notice message of the described sip subscribe request of described affirmation is used to indicate described IPPBX to upgrade and activates the relevant subscribing relationship of the described and described first IP phone terminal.
4. register method as claimed in claim 1 is characterized in that,
When the described first IP phone terminal also has the very first time of being scheduled at the lease expires apart from a described IP address, if carry out session with the second IP phone terminal, then further send a sip request message by described IPPBX to the described second IP phone terminal, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
After sending described SIP registration message, the described first IP phone terminal receives the sip response message that described IPPBX returns behind the log-on message that rebulids the described first IP phone terminal;
After receiving described sip response message, described first IP phone terminal and the described second IP phone terminal heavy invitation message of SIP by carrying the IP address before and after changing is alternately upgraded the RTP socket of the described session of preservation separately, recovers described session.
5. register method as claimed in claim 4 is characterized in that,
The described second IP phone terminal is after receiving described sip request message, further judge whether self IP address can change in second time of being scheduled to, described predetermined second time is greater than the described predetermined very first time: if, the then described second IP phone terminal is upgraded self IP address after the described predetermined very first time, and after self IP address is upgraded, carry the 3rd of renewal front and back to described IPPBX transmission, the 2nd SIP registration message of the 4th IP address, described the 2nd SIP registration message is used to indicate the log-on message of described IPPBX according to the described second IP phone terminal of described the 3rd IP address cancel, and, rebulid the log-on message of the described second IP phone terminal according to described the 4th IP address.
6. as claim 4 or 5 described register methods, it is characterized in that the heavy invitation message of described SIP is sent by the founder of described session.
7. the register method of an IP phone terminal, the IP address of described IP phone terminal be is characterized in that by the Dynamic Host Configuration Protocol server dynamic assignment described register method comprises:
The SIP registration message that IP-based subscriber exchange IPPBX receives is that the first IP phone terminal sends after self IP address modification, carry first, second IP address before and after changing;
Described IPPBX is according to an IP address of carrying in the described SIP registration message, nullify the log-on message of the described first IP phone terminal, and, rebulid the log-on message of the described first IP phone terminal according to the 2nd IP address of carrying in the described SIP registration message.
8. register method as claimed in claim 7 is characterized in that, also comprises:
Described IPPBX further receives change in self IP address back and sending the SIP notice message that sends before the described SIP registration message of the described first IP phone terminal, and according to a described IP address of carrying in the described SIP notice message before changing, the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation;
And, after the log-on message that rebulids the described first IP phone terminal, described IPPBX is further according to the relevant subscribing relationship of the described and described first IP phone terminal, send the sip subscribe request message of the correlation behavior of the described first IP phone terminal that is used to pull subscription to the described first IP phone terminal, and after confirming the SIP notice message of described sip subscribe request message in being used to of receiving that the described first IP phone terminal returns, according to described the 2nd IP address, upgrade and the relevant subscribing relationship of the described first IP phone terminal, and the state of subscribing relationship that again will be relevant with the described first IP phone terminal is arranged to activate.
9. IP phone terminal, the IP address of the described first IP phone terminal be is characterized in that by the Dynamic Host Configuration Protocol server dynamic assignment the described first IP phone terminal comprises:
Detecting unit, whether an IP address that is used to detect this IP phone terminal changes;
Registering unit, be used for after this IP phone terminal detects self IP address and changes, IP-based subscriber exchange IPPBX to correspondence sends the SIP registration message that carries first, second IP address before and after changing, described SIP registration message is used to indicate the log-on message of described IPPBX according to described this IP phone of IP address cancel terminal, and, rebulid the log-on message of this IP phone terminal according to described the 2nd IP address.
10. the first IP phone terminal as claimed in claim 9 is characterized in that,
Described registering unit, also be used for before sending described SIP registration message, send the SIP notice message that carries a described IP address to described IPPBX, described SIP notice message is used to indicate described IPPBX according to a described IP address, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation.
11. the first IP phone terminal as claimed in claim 10 is characterized in that, also comprises:
The subscribing relationship recovery unit is used to receive the sip subscribe request message, and returns the SIP notice message of confirming described sip subscribe request to described IPPBX during the request in accepting described sip subscribe request message;
Wherein, described sip subscribe request message is that described IPPBX is after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, to the pull subscription message of correlation behavior of the described first IP phone terminal of the described first IP phone terminal being used to of sending; The SIP notice message of the described sip subscribe request of described affirmation is used to indicate described IPPBX to upgrade and activates the relevant subscribing relationship of the described and described first IP phone terminal.
12. the first IP phone terminal as claimed in claim 9 is characterized in that, also comprises:
The prompting message transmitting element, be used for when the lease expires apart from an IP address also has the very first time of being scheduled to, if this IP phone terminal is carried out session with the second IP phone terminal, then send a sip request message by described IPPBX to the described second IP phone terminal, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
The response receiving element is used to receive the sip response message that described IPPBX returns behind the log-on message that rebulids this IP phone terminal;
The session recovery unit, be used for after described response receiving element receives described sip response message, with the SIP heavy invitation message of the described second IP phone terminal by carrying the IP address before and after changing alternately, the RTP socket that the heavy invitation message of described SIP is used to upgrade the described session that this IP phone terminal and the second IP phone terminal preserve separately recovers described session.
13. an IP phone terminal, the IP address of the described second IP phone terminal be is characterized in that by the Dynamic Host Configuration Protocol server dynamic assignment the described second IP phone terminal comprises:
Receiving element, be used to receive the sip request message that the first IP phone terminal sends by corresponding IPPBX, described sip request message is that the described first IP phone terminal is when the lease expires of an IP address of the current use of distance is scheduled to the very first time in addition, judge with the described second IP phone terminal and carry out sending after the session, described sip request message is used to indicate the IP address of the described first IP phone terminal to change and to point out the described second IP phone terminal not want on-hook after the described predetermined very first time;
The session processing unit, be used to receive that the described first IP phone terminal is transmitted by described IPPBX, as to carry the IP address of the described first IP phone terminal change front and back heavy invitation message of SIP, and, upgrade the RTP socket of the described session of this IP phone terminal preservation according to the heavy invitation message of described SIP;
The heavy invitation message of described SIP is the described first IP phone terminal after detecting self IP address and changing, carry first of change front and back to described IPPBX transmission, the SIP registration message of the 2nd IP address, and receive that described IPPBX sends behind the sip response message that returns behind the log-on message that rebulids the described first IP phone terminal, wherein, described SIP registration message is used to indicate the log-on message of described IPPBX according to the described first IP phone terminal of a described IP address cancel, and, rebulid the log-on message of the described first IP phone terminal according to described the 2nd IP address.
14. the second IP phone terminal as claimed in claim 13 is characterized in that, also comprises:
Judging unit, be used for after described receiving element receives described sip request message, judge whether self IP address can change in predetermined second time, described predetermined second time is greater than the described predetermined very first time: if, then after the described predetermined very first time, upgrade self IP address, and after self IP address is upgraded, carry the 3rd of renewal front and back to described IPPBX transmission, the 2nd SIP registration message of the 4th IP address, described the 2nd SIP registration message is used to indicate the log-on message of described IPPBX according to the described second IP phone terminal of described the 3rd IP address cancel, and, rebulid the log-on message of the described second IP phone terminal according to described the 4th IP address.
15. an IP-based subscriber exchange IPPBX is characterized in that, comprising:
Receiving element is used to receive first IP phone terminal SIP registration message that send, that carry first, second IP address before and after changing after self IP address modification;
The register update unit, be used for the IP address of carrying according to described SIP registration message, nullify the log-on message of the described first IP phone terminal, and, rebulid the log-on message of the described first IP phone terminal according to the 2nd IP address of carrying in the described SIP registration message.
16. IPPBX as claimed in claim 15 is characterized in that,
Described receiving element also is used to receive change in self IP address back and sending the SIP notice message that sends before the described SIP registration message of the described first IP phone terminal;
Described IPPBX also comprises:
The subscribing relationship updating block is used for carrying the preceding described IP address of change according to described SIP notice message, and the state of subscribing relationship that will be relevant with the described first IP phone terminal is arranged to un-activation; And, after the log-on message that rebulids the described first IP phone terminal, according to the relevant subscribing relationship of the described and described first IP phone terminal, send the sip subscribe request message of the correlation behavior of the described first IP phone terminal that is used to pull subscription to the described first IP phone terminal, and after confirming the SIP notice message of described sip subscribe request message in being used to of receiving that the described first IP phone terminal returns, according to described the 2nd IP address, upgrade and the relevant subscribing relationship of the described first IP phone terminal, and the state of subscribing relationship that again will be relevant with the described first IP phone terminal is arranged to activate.
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| CN200910235321A CN101695071A (en) | 2009-09-30 | 2009-09-30 | Registration method of internet protocol telephone terminal and equipment thereof |
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| CN200910235321A CN101695071A (en) | 2009-09-30 | 2009-09-30 | Registration method of internet protocol telephone terminal and equipment thereof |
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| CN103200200A (en) * | 2013-04-15 | 2013-07-10 | 广东天波信息技术股份有限公司 | Illegal dialing prevention method of SIP terminal and SIP server |
| CN105282473A (en) * | 2015-10-22 | 2016-01-27 | 福建星网锐捷通讯股份有限公司 | Method and system for playing back and monitoring remote multi-media records based on IPPBX equipment |
| CN109089000A (en) * | 2018-10-24 | 2018-12-25 | 迈普通信技术股份有限公司 | voice call processing method and device |
| CN111277541A (en) * | 2018-12-04 | 2020-06-12 | 北京京东尚科信息技术有限公司 | IP telephone registration service method and device |
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| CN101860629A (en) * | 2010-05-28 | 2010-10-13 | 杭州华三通信技术有限公司 | Method, equipment and system for binding external exchange port and IP phone in one-to-one correspondence |
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| CN102833435A (en) * | 2012-08-27 | 2012-12-19 | 北京理想固网科技股份有限公司 | IP PBX (Internet Protocol-Private Branch Exchange) cross-network registration management method based on logic communication group |
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| CN105282473A (en) * | 2015-10-22 | 2016-01-27 | 福建星网锐捷通讯股份有限公司 | Method and system for playing back and monitoring remote multi-media records based on IPPBX equipment |
| CN105282473B (en) * | 2015-10-22 | 2018-09-28 | 福建星网锐捷通讯股份有限公司 | The method and system of remote multi-media recording and playback and monitoring are realized based on IPPBX equipment |
| CN109089000A (en) * | 2018-10-24 | 2018-12-25 | 迈普通信技术股份有限公司 | voice call processing method and device |
| CN109089000B (en) * | 2018-10-24 | 2020-10-27 | 迈普通信技术股份有限公司 | Voice call processing method and device |
| CN111277541A (en) * | 2018-12-04 | 2020-06-12 | 北京京东尚科信息技术有限公司 | IP telephone registration service method and device |
| CN111277541B (en) * | 2018-12-04 | 2023-06-02 | 北京京东尚科信息技术有限公司 | IP telephone registration service method and device |
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