CN111601187B - OLT centralized management ONU voice method, OLT equipment and system - Google Patents

OLT centralized management ONU voice method, OLT equipment and system Download PDF

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Publication number
CN111601187B
CN111601187B CN202010320213.8A CN202010320213A CN111601187B CN 111601187 B CN111601187 B CN 111601187B CN 202010320213 A CN202010320213 A CN 202010320213A CN 111601187 B CN111601187 B CN 111601187B
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onu
module
voice
private
msan
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CN111601187A (en
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何利英
王陈琛
覃玲芳
吴莉
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Fiberhome Telecommunication Technologies Co Ltd
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Fiberhome Telecommunication Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects

Abstract

The invention discloses a method for OLT centralized management ONU voice, which comprises the following steps: more than two voice protocols are simultaneously operated on the OLT; the ONU hung below the OLT does not start a voice protocol, and only initializes a CODEC/SLIC module and a DSP module; after the ONU is successfully registered on the OLT, the OLT configures the required voice protocol type for the ONU port, so that the ONU can simultaneously support multiple voice protocols; when voice service is carried out, the ONU utilizes the MSAN private communication module, the MSAN data forwarding module and the corresponding voice protocol module of the OLT to realize voice communication of a corresponding protocol with the opposite-end ONU through the NGN network. In the invention, the OLT supports a plurality of voice protocols simultaneously, the ONU can realize the ONU voice function only by configuring the ONU port protocol type on the OLT without starting the voice protocols, and the same ONU can support different voice protocols simultaneously. The invention also provides corresponding OLT equipment and a system for OLT centralized management of ONU voice.

Description

OLT centralized management ONU voice method, OLT equipment and system
Technical Field
The invention belongs to the field of voice communication, and particularly relates to a method for OLT centralized management of ONU voice, OLT equipment and a system.
Background
At present, an OLT (Optical Line Terminal) device not only manages all ONU (Optical Network Unit) devices under the OLT, but also carries an MSAN (Multi-Service Access Network) voice protocol. The voice-enabled ONU devices also carry voice protocols, and each ONU is assigned a voice over IP (Internet Protocol) address. When the two devices are used cooperatively, the two devices carry the voice protocol, so that the resource is wasted.
Disclosure of Invention
The invention aims to provide a method for OLT to centrally manage ONU voice, OLT equipment and a system. The voice parts of the OLT and the ONU equipment are integrated, the voice protocol is uniformly distributed on the OLT, the ONU does not start the voice protocol any more, and the OLT centrally manages the ONU voice system, so that the problem that in the prior art, the OLT and the ONU both carry the voice protocol when being matched for use, which causes resource waste can be solved.
To achieve the above object, according to an aspect of the present invention, there is provided a method for an OLT to centrally manage ONU voices, comprising:
more than two voice protocols are simultaneously operated on the OLT;
the ONU hung below the OLT does not start a voice protocol, and only initializes a CODEC/SLIC module and a DSP module;
after the ONU is successfully registered on the OLT, the OLT configures the required voice protocol type for the ONU port, so that the ONU can simultaneously support multiple voice protocols;
when voice service is carried out, the ONU utilizes the MSAN private communication module, the MSAN data forwarding module and the corresponding voice protocol module of the OLT to realize voice communication of a corresponding protocol with the opposite-end ONU through the NGN network.
In an embodiment of the present invention, the processing flow of the actions of off-hook, on-hook and dialing in the voice communication process is as follows:
when ONU carries out voice service, the actions of off-hook, on-hook and dialing are encapsulated into a private protocol message through the ONU private communication module, and the private protocol message is sent to the MSAN private communication module of OLT;
after receiving the private protocol message, the MSAN private communication module of the OLT analyzes off-hook and on-hook actions and dialing numbers, and transmits the private protocol message to a corresponding voice protocol module for processing according to the protocol type configured by the ONU port;
and the MSAN private communication module of the OLT encapsulates the playing and stopping actions of the signal sound into a private message and sends the private message to the ONU private communication module, and the ONU private communication module analyzes the private message and then informs the CODEC/SLIC module or the DSP module to perform corresponding processing.
In an embodiment of the present invention, a processing flow of a signaling message in a voice call process is as follows:
the voice protocol module sends the signaling message to the NGN network through the corresponding socket;
after receiving the signaling message from the NGN network, the signaling message is sent to the corresponding voice protocol module for processing through the target IP recognition socket in the signaling message.
In an embodiment of the present invention, a processing flow of a voice RTP stream in a voice call process is as follows:
the voice protocol module analyzes the signaling to obtain voice RTP flow communication parameters, the communication parameters are sent to the ONU through the MSAN private communication module, the ONU private communication module transmits the analyzed communication parameters to the DSP module, and the DSP module is informed to open an RTP channel;
and the DSP module of the ONU sends the voice RTP stream to the NGN network through the MSAN data forwarding module of the OLT, and simultaneously the voice RTP stream received from the NGN network is sent to the DSP module of the ONU through the MSAN data forwarding module to realize voice conversation.
In one embodiment of the present invention, the voice protocol running on the OLT device includes H248 voice protocol, or SIP voice protocol, or MGCP voice protocol.
In an embodiment of the present invention, when the ONU port is configured as the SIP protocol, the processing flow of the voice RTP stream in the voice call process is:
the SIP protocol module processes 180RING signaling received from NGN network, reports the RING back tone playing event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends the private message to ONU, ONU private communication module receives the message and analyzes the message and informs DSP module to play RING back tone;
the SIP protocol module transmits the related information of IP and UDP ports in SDP message carried by 200OK signaling to the MSAN data forwarding module, and the MSAN data forwarding module opens a data forwarding channel according to the information; the SIP protocol module reports the information to the MSAN private communication module, the MSAN private communication module encapsulates IP and UDP port parameters into private messages and sends the private messages to the ONU, the ONU private communication module receives the messages and analyzes the messages and sends the messages to the DSP module, the DSP module opens an RTP channel according to relevant parameters, and sends and receives voice RTP streams, and the conversation between the two parties is established.
In an embodiment of the present invention, when the ONU port is configured as the H248 protocol, the processing flow of the voice RTP stream in the voice call process is:
an H248 protocol module receives Add signaling of the NGN network, allocates a local RTP IP and a port, and sends Reply messages carrying the RTP IP and the port number information to the NGN network;
the H248 protocol module receives the Modify signaling of NGN network, and transmits the ring back tone play event to the MSAN private communication module, the MSAN private communication module encapsulates the event into private message and transmits the private message to ONU, and the ONU private communication module analyzes the message and informs the DSP module to play the ring back tone;
the H248 protocol module receives the Modify signaling of the NGN network again, transmits the ring back tone stop event to the MSAN private communication module, the MSAN private communication module encapsulates the event into a private message and transmits the private message to the ONU, and the ONU private communication module analyzes the message and then informs the DSP module to stop the ring back tone;
the H248 protocol module transmits the IP and UDP port information carried by the Modify signaling to the MSAN data forwarding module, and the MSAN data forwarding module starts a data forwarding channel according to the information; the H248 protocol module reports the information to the MSAN private communication module, the MSAN private communication module encapsulates IP and UDP port parameters into private messages and sends the private messages to the ONU, the ONU private communication module analyzes the private messages and then sends the private messages to the DSP module, the DSP module opens an RTP channel and sends and receives voice RTP streams, and the conversation between the two parties is established.
In an embodiment of the present invention, when the ONU port is configured as the MGCP, the processing flow of the voice RTP stream during the voice call is as follows:
MGCP protocol module receives MDCX signaling of NGN network, and transmits the ring back tone playing event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends the message to ONU, ONU private communication module analyzes the message and informs DSP module to play ring back tone;
MGCP protocol module receives MDCX signaling of NGN network again, transmits the ring back tone stop event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends the private message to ONU, ONU private communication module analyzes the message and informs DSP module to stop ring back tone;
MGCP protocol module transmits IP and UDP port information carried by MDCX signaling to MSAN data forwarding module, MSAN data forwarding module opens data forwarding channel according to the information; MGCP protocol module reports these information to MSAN private communication module, MSAN private communication module packages IP and UDP port parameters into private message to send to ONU, ONU private communication module analyzes the message and then sends to DSP module, DSP module opens RTP channel, sends and receives voice RTP stream, both parties call establishment.
According to another aspect of the present invention, an OLT apparatus is further provided, which is configured to perform the method for the OLT to centrally manage ONU voices.
According to another aspect of the present invention, there is also provided a system for OLT centralized management of ONU voices, including an OLT device and an ONU device for executing the method for OLT centralized management of ONU voices.
Generally, compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) the OLT supports various voice protocols simultaneously, the ONU can realize the ONU voice function only by configuring the ONU port protocol type on the OLT without starting the voice protocols, and the same ONU can support different voice protocols simultaneously;
(2) the ONU does not need to operate a voice protocol system, so that the CPU resource is saved, and a CPU with lower cost can be selected;
(3) the ONU does not need to distribute the voice IP, and only needs to distribute the voice IP on the OLT according to the voice protocol type, thereby saving IP resources.
Drawings
Fig. 1 is a schematic flow chart of a method for an OLT to centrally manage ONU voices in an embodiment of the present invention;
FIG. 2 is an interaction block diagram of an MSAN and an ONU of an OLT in an embodiment of the present invention;
fig. 3 is a schematic diagram of a call flow of an ONU taking an SIP protocol as an example as a calling party in the embodiment of the present invention;
fig. 4 is a schematic diagram of a call flow of an ONU taking an H248 protocol as an example as a calling party in the embodiment of the present invention;
fig. 5 is a schematic diagram of a call flow of an ONU taking MGCP as an example to make a call in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention operates a plurality of voice protocols such as H248, SIP (Session Initiation Protocol), MGCP (Media Gateway Control Protocol) and other voice protocols on the OLT at the same time, and only initializes CODEC/SLIC module and DSP (Digital Signal Processing) module without starting the voice Protocol on the ONU hung under the OLT. The ONU port flexibly configures the voice protocol type through OLT configuration, so that the ONU can simultaneously support a plurality of voice protocols.
The main modules for realizing OLT centralized management ONU voice comprise: the system comprises an MSAN private communication module of the OLT, an MSAN data forwarding module of the OLT, an OLT voice protocol module, a CODEC/SLIC module of the ONU, a DSP module of the ONU and an ONU private communication module. Wherein:
(1) MSAN private communication module of OLT: the OLT is responsible for the private protocol message communication between the OLT and the ONU, the OLT information is packaged into a private protocol message to be sent to the ONU, and meanwhile, the private protocol message sent to the OLT by the ONU is analyzed.
(2) MSAN data forwarding module of OLT: and is responsible for forwarding of voice-time Transport Protocol (RTP) streams of the ONU and voice RTP streams of the NGN (Next Generation Network) Network.
(3) The voice protocol module of the OLT: and the protocol message is responsible for processing the voice call flow.
(4) CODEC/SLIC module of ONU: CODEC (code/decode), i.e., CODEC, SLIC (Subscriber Line Interface Circuit), CODEC/Subscriber Line Interface Circuit, which is responsible for handling analog-to-digital/digital-to-analog conversion and for off-hook, on-hook, ringing, etc.
(5) A DSP module of the ONU: and the digital signal processing module is responsible for processing the generation of signal tones, the detection of DTMF (Dual Tone Multi Frequency) numbers, the packing and unpacking of voice RTP streams and the like.
(6) Private protocol module of ONU: the method is responsible for the communication of the private protocol messages between the ONU and the OLT, encapsulates the ONU information into the private protocol messages and sends the private protocol messages to the OLT, and simultaneously analyzes the private protocol messages sent to the ONU by the OLT.
Example 1
As shown in fig. 1, the present invention provides a method for an OLT to centrally manage ONU voices, including:
s1, operating more than two voice protocols on the OLT simultaneously;
s2, starting no voice protocol on the ONU hung below the OLT, and only initializing the CODEC/SLIC module and the DSP module;
s3, after the ONU successfully registers on the OLT, the OLT configures the required voice protocol type for the ONU port, and the ONU simultaneously supports multiple voice protocols;
s4, when voice service is carried out, ONU utilizes the MSAN private communication module, MSAN data forwarding module and corresponding voice protocol module of OLT to realize voice communication of corresponding protocol with opposite end ONU through NGN network.
Example 2
In the embodiment of the present invention, an overall process for implementing the method for OLT centralized management of ONU voices in the present invention is described, including:
1. the OLT equipment simultaneously runs a plurality of voice protocols, such as H248, SIP and the like.
2. The ONU does not start the voice protocol, and only initializes and operates the CODEC/SLIC module and the DSP module.
3. And the ONU port selects a voice protocol type supported by the OLT to bind on an OLT configuration interface.
4. When ONU carries out voice service, the actions of port off-hook, on-hook, dialing and the like are encapsulated into a private protocol message through the ONU private communication module and sent to the MSAN private communication module of OLT.
5. And after receiving the message, the MSAN private communication module of the OLT analyzes off-hook, on-hook and number, and sends the message to a corresponding voice protocol module for processing according to the protocol type bound by the port.
6. And the MSAN private communication module of the OLT encapsulates the actions of playing, stopping and the like of the signal sound into private messages and sends the private messages to the ONU private communication module, and the ONU private communication module analyzes the private messages and then informs the CODEC/SLIC module or the DSP module to carry out corresponding processing.
7. And the voice protocol module sends the signaling message to the NGN network through the corresponding socket.
8. After receiving the signaling message from the NGN network, the OLT identifies the socket through the target IP in the signaling message and sends the socket to the corresponding voice protocol module for processing.
9. After the voice Protocol module processes an SDP (Session Description Protocol) message carried by a signaling, parameters such as a source IP, a source port, a target IP, a target port and the like are sent to the ONU through the MSAN private communication module, the DSP module is informed after the ONU private communication module analyzes the parameters, and the DSP module opens an RTP channel of the port according to the parameters.
10. And the DSP module of the ONU sends the voice RTP stream to the NGN network through the MSAN data forwarding module of the OLT, and simultaneously the voice RTP stream received from the NGN network is sent to the DSP module of the ONU through the MSAN data forwarding module to realize voice conversation.
Example 3
Fig. 2 is a block diagram illustrating interaction between the MSAN of the OLT and the ONU in the embodiment of the present invention, which describes an interaction relationship between the ONU and the MSAN of the OLT.
1. The OLT equipment initiates a number of voice protocols such as H248 protocol, SIP protocol, MGCP protocol.
2. And the signaling of each voice protocol finds out the corresponding socket through the local signaling IP and sends the socket to the NGN network.
3. The signaling received from NGN network finds out the corresponding socket through the target IP in the message and sends to the voice protocol.
4. And actions of off-hook, on-hook, ringing, dialing and the like of the ONU port are encapsulated into a private message through the ONU private communication module and are sent to the OLT, and after the private message is analyzed by the MSAN private communication module of the OLT, a relevant event is sent to a corresponding voice protocol for processing according to a protocol type bound by the ONU port.
5. The MSAN voice protocol of the OLT sends analyzed SDP messages such as parameters of opposite-end media IP, opposite-end media ports, packet intervals and the like to the ONU through the MSAN private communication module, and the ONU private communication module transmits the analyzed parameters to the DSP module to inform the DSP module to open an RTP channel.
6. And the ONU voice RTP stream is sent to the NGN network through an MSAN data forwarding module of the OLT.
7. And after receiving the voice RTP stream from the NGN network, the voice RTP stream is sent to the DSP module of the ONU through an MSAN data forwarding module of the OLT.
Example 4
As shown in fig. 3, the present embodiment describes a call flow of an ONU as a calling party by taking an SIP protocol as an example:
301. and after detecting off-hook, the CODEC/SLIC module reports the event to an ONU private communication module, the ONU private communication module encapsulates the off-hook event into a private message and sends the private message to the OLT, the MSAN private communication module of the OLT analyzes the private message into an off-hook event after receiving the private message, and simultaneously inquires that the binding protocol type of the ONU port is an SIP protocol through configuration, so that the off-hook event is sent to the SIP protocol module for processing.
302. The SIP protocol module reports a dial tone playing event to the MSAN private communication module, the MSAN private communication module encapsulates the event into a private message and sends the private message to the ONU, and the ONU private communication module receives the private message and analyzes the private message and informs the DSP module to play the dial tone.
303. When a user dials, the DSP module detects that the numbers are reported to the ONU private communication module one by one, the ONU private communication module encapsulates the numbers into private messages and sends the private messages to the OLT, and the MSAN private communication module of the OLT receives the messages and analyzes the numbers and sends the numbers to the SIP protocol module for processing.
304. The SIP protocol module reports a dial tone stop event to the MSAN private communication module, the MSAN private communication module encapsulates the event into a private message and sends the private message to the ONU, and the ONU private communication module receives the private message, analyzes the private message and informs the DSP module of stopping the dial tone.
305. And the SIP protocol module performs figure matching on the received number, and sends the INVITE signaling for calling the called party to the NGN network after the figure matching is successful.
The number and graph matching means that the protocol module matches the received number with a dialing scheme, and if the dialed number conforms to the dialing scheme, the number receiving is stopped.
306. The SIP protocol module processes 180RING signaling received from NGN network, reports the RING back tone playing event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends it to ONU, ONU private communication module receives the message and analyzes it and informs DSP module to play RING back tone.
307. The SIP protocol module processes 200OK signaling received from NGN network, reports ring back tone stop event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends it to ONU, ONU private communication module receives the message and analyzes it and informs DSP module to stop ring back tone.
308. The SIP protocol module transmits relevant information such as IP (Internet protocol) and UDP (user Datagram protocol) ports in an SDP (service data protocol) message carried by the 200OK signaling to the MSAN data forwarding module, and the MSAN data forwarding module opens a data forwarding channel according to the information; the SIP protocol module reports the information to the MSAN private communication module, the MSAN private communication module encapsulates parameters such as IP and UDP ports into private messages and sends the private messages to the ONU, the ONU private communication module receives the messages and analyzes the messages and sends the messages to the DSP module, the DSP module opens an RTP channel according to the relevant parameters, and sends and receives voice RTP streams, and the conversation between the two parties is established.
309. The user hangs up, the CODEC/SLIC module detects that the hanging up reports the event to the ONU private communication module, the ONU private communication module encapsulates the hanging up event into a private message and sends the private message to the OLT, the MSAN private communication module of the OLT analyzes the private message into the hanging up event after receiving the private message, so that the hanging up event is sent to the SIP protocol module for processing, and the SIP protocol module sends a BYE signaling to the NGN network.
310. The SIP protocol module transmits information such as IP and UDP ports to the MSAN data forwarding module, and the MSAN data forwarding module closes a data forwarding channel according to the information; the SIP protocol module reports a channel closing event to the MSAN private communication module, the MSAN private communication module encapsulates the event into a private message and sends the private message to the ONU, the ONU private communication module receives the message and analyzes the message and informs the DSP module of closing the channel, and the conversation between the two parties is finished.
Example 5
As shown in fig. 4, the present embodiment describes a call flow of an ONU making a calling by taking an H248 protocol as an example:
401. the ONU calling user hooks off, the CODEC/SLIC module reports the event to the ONU private communication module after detecting the hooking, the ONU private communication module encapsulates the hooking event into a private message and sends the private message to the OLT, the MSAN private communication module of the OLT analyzes the private message into the hooking event after receiving the private message, and simultaneously inquires that the binding protocol type of the ONU port is H248 protocol through configuration, so that the hooking event is sent to the H248 protocol module for processing, and the H248 protocol module sends a Notify signaling carrying the hooking event to the NGN network.
402. The H248 protocol module receives the Modify signaling of NGN network, and transmits the dial tone playing event to the MSAN private communication module, the MSAN private communication module encapsulates the event into private message and transmits the private message to ONU, and the ONU private communication module analyzes the message and then informs the DSP module to play the dial tone.
403. When a user dials, the DSP module detects that the number is reported to the ONU private communication module, the ONU private communication module encapsulates the number into a private message and sends the private message to the OLT, and the MSAN private communication module of the OLT hands the analyzed number to the H248 protocol module for processing.
404. The H248 protocol module transmits the dial tone stop event to the MSAN private communication module, the MSAN private communication module encapsulates the dial tone stop event into a private message and transmits the private message to the ONU, and the ONU private communication module analyzes the private message and then informs the DSP module to stop the dial tone.
405. And the H248 protocol module matches the received number with the dialing scheme, stops receiving the number after the number conforms to the dialing scheme, and sends the Notify signaling for calling the called party to the NGN network.
406. The H248 protocol module receives Add signaling of NGN network, distributes local RTP IP and port, and sends Reply message carrying information of RTP IP and port number to NGN network.
407. The H248 protocol module receives the Modify signaling of NGN network, and transmits the ring back tone play event to the MSAN private communication module, the MSAN private communication module encapsulates the event into private message and transmits the private message to ONU, and the ONU private communication module analyzes the message and informs the DSP module to play the ring back tone;
408. the H248 protocol module receives the Modify signaling of the NGN network again, transmits the ring back tone stop event to the MSAN private communication module, the MSAN private communication module encapsulates the event into a private message and transmits the private message to the ONU, and the ONU private communication module analyzes the message and then informs the DSP module to stop the ring back tone.
409. The H248 protocol module transmits information such as IP and UDP ports carried by the Modify signaling to the MSAN data forwarding module, and the MSAN data forwarding module starts a data forwarding channel according to the information; the H248 protocol module reports the information to the MSAN private communication module, the MSAN private communication module encapsulates parameters such as IP and UDP ports into private messages and sends the private messages to the ONU, the ONU private communication module analyzes the messages and then sends the messages to the DSP module, the DSP module opens an RTP channel and sends and receives voice RTP streams, and the conversation between the two parties is established.
410. The user hangs up, the CODEC/SLIC module detects that the event is reported to the ONU private communication module by the hang up, the ONU private communication module encapsulates the hang up event into a private message and sends the private message to the OLT, the MSAN private communication module transmits the analyzed hang up event to the H248 protocol module for processing, and the H248 protocol module sends a Notify signaling carrying the hang up event to the NGN network.
411. After receiving a multicast signaling of the NGN, the H248 protocol module transmits information such as IP (Internet protocol) and UDP (user datagram protocol) ports to the MSAN data forwarding module, and the MSAN data forwarding module closes a data forwarding channel according to the information; the H248 protocol module transmits the channel closing event to the MSAN private communication module, the MSAN private communication module encapsulates the event into a private message and transmits the private message to the ONU, the ONU private communication module analyzes the message and then informs the DSP module to close the channel, and the communication between the two parties is finished.
Example 6
As shown in fig. 5, the present embodiment describes a call flow of an ONU making a call by taking MGCP as an example:
501. the calling user of ONU picks up the phone, CODEC/SLIC module reports the event to ONU private communication module after detecting off-hook, ONU private communication module encapsulates the off-hook event into private message and sends it to OLT, MSAN private communication module of OLT receives the message and analyzes it into off-hook event, it inquires that the binding protocol type of ONU port is MGCP protocol, so the off-hook event is sent to MGCP protocol module for processing, MGCP protocol module sends NTFY (notify) signaling carrying off-hook event to NGN network.
502. MGCP protocol module receives CRCX (create connection) signaling of NGN network, distributes RTP IP and port of local terminal, and transmits dial tone playing event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and transmits it to ONU, and ONU private communication module analyzes the message and informs DSP module to play dial tone.
503. The user dials, the DSP module reports the number to the ONU private communication module after detecting the number, the ONU private communication module encapsulates the number into a private message and sends the private message to the OLT, and the MSAN private communication module of the OLT hands the analyzed number to the MGCP protocol module for processing.
504. MGCP protocol module transmits the dial tone stop event to MSAN private communication module, MSAN private communication module encapsulates the dial tone stop event into private message and transmits it to ONU, ONU private communication module analyzes the message and informs DSP module to stop dial tone.
505. The MGCP protocol module matches the received number with the dialing plan, if the number accords with the dialing plan, the number receiving is stopped, and the called NTFY signaling is sent to the NGN network.
506. MGCP protocol module receives MDCX (modify connection) signaling of NGN network, and transmits the ring back tone playing event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and transmits the private message to ONU, ONU private communication module analyzes the message and informs DSP module to play ring back tone;
507. MGCP protocol module receives MDCX signaling of NGN network again, transmits the ring back tone stop event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends it to ONU, ONU private communication module analyzes the message and informs DSP module to stop ring back tone.
508. MGCP protocol module transmits information such as IP and UDP ports carried by MDCX signaling to MSAN data forwarding module, and MSAN data forwarding module opens data forwarding channel according to the information; MGCP protocol module reports these information to MSAN private communication module, MSAN private communication module packages IP, UDP port and other parameters into private message to send to ONU, ONU private communication module analyzes the message and then sends to DSP module, DSP module opens RTP channel, sends and receives voice RTP stream, both parties' call is established.
509. The user hangs up, the CODEC/SLIC module detects that the hang up reports the event to the ONU private communication module, the ONU private communication module encapsulates the hang up event into a private message and sends the private message to the OLT, the MSAN private communication module sends the analyzed hang up event to the MGCP protocol module for processing, and the MGCP protocol module sends the NTFY signaling carrying the hang up event to the NGN network.
510. After receiving DLCX (delete connection) signaling of an NGN (Next Generation network), the MGCP protocol module transmits information such as IP (Internet protocol) and UDP (user Datagram protocol) ports to the MSAN data forwarding module, and the MSAN data forwarding module closes a data forwarding channel according to the information; MGCP protocol module transmits the closing channel event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends it to ONU, ONU private communication module analyzes the message and informs DSP module to close the channel, both parties end the communication.
Example 7
Further, an embodiment of the present invention further provides an OLT device, configured to execute the method for the OLT to centrally manage the ONU voices.
Example 8
Further, an embodiment of the present invention further provides a system for OLT centralized management of ONU voices, including an OLT device and an ONU device for executing the method for OLT centralized management of ONU voices.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
In some of the flows described in the present specification and claims and in the above-described figures, a number of operations are included that occur in a particular order, but it should be clearly understood that these operations may be performed out of order or in parallel as they occur herein, the order of the operations merely being used to distinguish between the various operations, and the order of execution does not itself represent any order of execution. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. A method for OLT to centrally manage ONU voice is characterized by comprising the following steps:
more than two voice protocols are simultaneously operated on the OLT; the voice protocol running on the OLT equipment comprises an H248 voice protocol, an SIP voice protocol or an MGCP voice protocol;
the ONU hung below the OLT does not start a voice protocol, and only initializes a CODEC/SLIC module and a DSP module;
after the ONU is successfully registered on the OLT, the OLT configures the required voice protocol type for the ONU port, so that the ONU can simultaneously support multiple voice protocols;
when voice service is carried out, the ONU utilizes the MSAN private communication module, the MSAN data forwarding module and the corresponding voice protocol module of the OLT to realize voice communication of a corresponding protocol with the opposite-end ONU through the NGN network.
2. The method for the OLT to centrally manage ONU voices according to claim 1, wherein a process flow of an off-hook, an on-hook and a dialing action in a voice call process is:
when ONU carries out voice service, the actions of off-hook, on-hook and dialing are encapsulated into a private protocol message through the ONU private communication module, and the private protocol message is sent to the MSAN private communication module of OLT;
after receiving the private protocol message, the MSAN private communication module of the OLT analyzes off-hook and on-hook actions and dialing numbers, and transmits the private protocol message to a corresponding voice protocol module for processing according to the protocol type configured by the ONU port;
and the MSAN private communication module of the OLT encapsulates the playing and stopping actions of the signal sound into a private message and sends the private message to the ONU private communication module, and the ONU private communication module analyzes the private message and then informs the CODEC/SLIC module or the DSP module to perform corresponding processing.
3. The method for the OLT to centrally manage the ONU voices according to claim 1, wherein a processing flow of a signaling message in a voice call process is:
the voice protocol module sends the signaling message to the NGN network through the corresponding socket;
after receiving the signaling message from the NGN network, the signaling message is sent to the corresponding voice protocol module for processing through the target IP recognition socket in the signaling message.
4. The method for the OLT to centrally manage the ONU voices according to claim 1, wherein a processing flow of a voice RTP stream in a voice call process is:
the voice protocol module analyzes the signaling to obtain voice RTP flow communication parameters, the communication parameters are sent to the ONU through the MSAN private communication module, the ONU private communication module transmits the analyzed communication parameters to the DSP module, and the DSP module is informed to open an RTP channel;
and the DSP module of the ONU sends the voice RTP stream to the NGN network through the MSAN data forwarding module of the OLT, and simultaneously the voice RTP stream received from the NGN network is sent to the DSP module of the ONU through the MSAN data forwarding module to realize voice conversation.
5. The method for OLT centralized management of ONU voice according to claim 1, wherein when the ONU port is configured as SIP protocol, the processing flow of voice RTP stream in the voice call process is:
the SIP protocol module processes 180RING signaling received from NGN network, reports the RING back tone playing event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends the private message to ONU, ONU private communication module receives the message and analyzes the message and informs DSP module to play RING back tone;
the SIP protocol module transmits the related information of IP and UDP ports in SDP message carried by 200OK signaling to the MSAN data forwarding module, and the MSAN data forwarding module opens a data forwarding channel according to the information; the SIP protocol module reports the information to the MSAN private communication module, the MSAN private communication module encapsulates IP and UDP port parameters into private messages and sends the private messages to the ONU, the ONU private communication module receives the messages and analyzes the messages and sends the messages to the DSP module, the DSP module opens an RTP channel according to relevant parameters, and sends and receives voice RTP streams, and the conversation between the two parties is established.
6. The method for OLT centralized management of ONU voice according to claim 1, wherein when the ONU port is configured as H248 protocol, the processing flow of voice RTP stream in the voice call process is:
an H248 protocol module receives Add signaling of the NGN network, allocates a local RTP IP and a port, and sends Reply messages carrying the RTP IP and the port number information to the NGN network;
the H248 protocol module receives the Modify signaling of NGN network, and transmits the ring back tone play event to the MSAN private communication module, the MSAN private communication module encapsulates the event into private message and transmits the private message to ONU, and the ONU private communication module analyzes the message and informs the DSP module to play the ring back tone;
the H248 protocol module receives the Modify signaling of the NGN network again, transmits the ring back tone stop event to the MSAN private communication module, the MSAN private communication module encapsulates the event into a private message and transmits the private message to the ONU, and the ONU private communication module analyzes the message and then informs the DSP module to stop the ring back tone;
the H248 protocol module transmits the IP and UDP port information carried by the Modify signaling to the MSAN data forwarding module, and the MSAN data forwarding module starts a data forwarding channel according to the information; the H248 protocol module reports the information to the MSAN private communication module, the MSAN private communication module encapsulates IP and UDP port parameters into private messages and sends the private messages to the ONU, the ONU private communication module analyzes the private messages and then sends the private messages to the DSP module, the DSP module opens an RTP channel and sends and receives voice RTP streams, and the conversation between the two parties is established.
7. The method for OLT centralized management of ONU voice according to claim 1, wherein when the ONU port is configured as MGCP, the processing flow of voice RTP stream during voice call is:
MGCP protocol module receives MDCX signaling of NGN network, and transmits the ring back tone playing event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends the message to ONU, ONU private communication module analyzes the message and informs DSP module to play ring back tone;
MGCP protocol module receives MDCX signaling of NGN network again, transmits the ring back tone stop event to MSAN private communication module, MSAN private communication module encapsulates the event into private message and sends the private message to ONU, ONU private communication module analyzes the message and informs DSP module to stop ring back tone;
MGCP protocol module transmits IP and UDP port information carried by MDCX signaling to MSAN data forwarding module, MSAN data forwarding module opens data forwarding channel according to the information; MGCP protocol module reports these information to MSAN private communication module, MSAN private communication module packages IP and UDP port parameters into private message to send to ONU, ONU private communication module analyzes the message and then sends to DSP module, DSP module opens RTP channel, sends and receives voice RTP stream, both parties call establishment.
8. A system for OLT centralized management of ONU voice, comprising an OLT apparatus and an ONU apparatus for performing the method for OLT centralized management of ONU voice according to any one of claims 1 to 7.
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