KR101382133B1 - Converssion method, appartus and system for communication pattern to ip-telephony - Google Patents

Abstract

The present invention relates to a call conversion method for allowing one or a call counterpart in a call to continue a call by converting a call method into an IP call, and an IP call device and an IP call system for the same. A first step of extracting identification information of a call counterpart from one communication terminal in a call state; A second step of transmitting, by the communication module in the communication terminal of one side of the call, the identification information to a relay server; A third step of the information retrieval module of the relay server searching member information of the call counterpart corresponding to the identification information in a member information DB; A fourth step of the call relay module opening a channel according to the member information and transmitting a call signal to a communication terminal of the call counterpart; A fifth step of the communication module in the communication terminal of the call counterpart outputting incoming information in response to the call signal; And a sixth step in which the IP call module in the communication terminal of the one side of the call and the call counterpart is connected through the channel, and transmits and receives a packet by processing a call signal.

Description

Method of converting call method to IP call and IP call device and IP call system for it {CONVERSSION METHOD, APPARTUS AND SYSTEM FOR COMMUNICATION PATTERN TO IP-TELEPHONY}

The present invention relates to a method of converting a call method for allowing one or a call counterpart in a call to continue a call by converting a call method into an IP call, and an IP call device and an IP call system therefor.

With the rapid development of mobile communication technology, mobile communication terminals that can transmit or receive anytime, anywhere have become an essential portable device for people.

However, as the types of communication services and the quality of the communication services have been improved along with the development of the mobile communication technology, the users using the communication services have been demanding new, diverse and high quality services. Of course, in line with this, the telecommunications company provided users with more diverse and high quality communication services to satisfy their needs.

However, since the telecommunication company demands an economic burden when providing a new communication service to the user, there is a problem that the communication fee that the user must feel as the new communication service increases also increases.

On the other hand, for the purpose of increasing the company's profitability, the telecommunications company usually establishes a fee system that is advantageous to the company and allows the user to choose a user. In particular, in the case of a plan that provides free talk time for a certain period of time, such as a flat rate plan, a user may include a relatively infrequent communication product as one of the essential items constituting the flat rate plan. It was added to the cost of the communication product.

As a result, a significant amount of the communication fee paid by the user to the telecommunication company is paid for the communication product cost in addition to the voice call fee, and the user has no choice but to feel inconvenience in the voice call time that is insufficient for the payment cost.

In order to solve this problem, the prior art combines a device for general call and a device for communication of another communication method to a single mobile communication terminal, so that the user can selectively determine the call method and proceed with the call. (Patent Publication No. 10-2005-0034447 and Publication No. 10-2008-0048209) have been proposed. However, the prior art was merely to allow the user to take advantage of the device as the devices are simply combined in one case without interworking with each other. After all, if the user selects one of the two devices to proceed with the call and then changes to the other to continue the call, the user must stop the operation of the previous device to start the call with the same party, and then start the call initiation process from the beginning. The user may feel trouble with the change in the call method, and even after continuing the call after changing the call method, the call party loses the will of the call because the MAC of the call is disconnected.

Accordingly, the present invention has been invented to solve the above problems, IP can be made in a variety of call method in one terminal, and to minimize the hassle of having to start a new procedure for a call when converting the call method It is an object of the present invention to solve a method of converting a call method into a call and providing an IP call device and an IP call system for the same.

According to an aspect of the present invention,

An identification information checking step of confirming, by the IP communication apparatus of the communication terminal, identification information of the call counterpart from the call history information;

An identification information transmitting step of transmitting, by the IP communication apparatus in one communication terminal, the identification information of the one party and the identification information of the other party to the relay server;

A channel establishing step of the relay server establishing a channel according to the identification information;

An IP call connection step in which an IP call device in a communication terminal of one of the calls and a call counterpart is connected through the channel, and processes and transmits and receives a call signal including voice data through the channel;

Provides a method of converting the currency into IP currency, including.

In the method of converting a currency method according to the present invention, the identifying information checking step is

Confirming the identification information when the IP telephone apparatus recognizes an "OFF HOOK" function or an "ON HOOK" function handling of the OS;

.

In the currency conversion method according to the invention,

Preferably, the identification information is a public telephone telephone network dedicated phone number, and the member information is a voice packet network dedicated telephone number linked with the corresponding public switched telephone network dedicated telephone number.

In the call conversion method according to the invention, the IP call connection step

Accessing, by a polling method, the IP call device in the communication terminal of the call counterpart to the relay server for a predetermined time after the general call of the phone app ends; And

Checking and establishing an established channel;

.

In the call conversion method according to the invention, the channel establishment step is

Transmitting, by the relay server, a push signal to a communication terminal of the call counterpart based on the identification information of the call counterpart;

.

In the currency conversion method according to the invention,

In the IP call connection step, the call signal is preferably transmitted and received in a walkie-talkie manner to selectively transmit only one direction between the communication terminal of the call and the other party.

According to another aspect of the present invention,

A confirmation module for confirming identification information of a call counterpart from call history information; And

A call module which transmits the identification information to a relay server for relaying an IP call, packetizes a call signal including voice data input and output during an IP call, and transmits and receives the call signal through a channel of the relay server;

It provides an IP call device comprising a.

In the IP telephone apparatus according to the present invention,

Confirmation of the identification information of the confirmation module is preferably made after recognizing the handling of the "OFF HOOK" function or "ON HOOK" function of the OS in the communication terminal.

In the IP telephone apparatus according to the present invention,

When the call module recognizes the termination of the general call of the phone app, it is preferable to connect to the relay server in a polling manner for a predetermined time and confirm channel establishment.

According to another aspect of the present invention,

A confirmation module for confirming identification information of a call counterpart from call history information; And a call module for transmitting the identification information to a relay server for relaying an IP call, packetizing a call signal including voice data input and output during an IP call, and transmitting and receiving the call signal through a channel of the relay server. IP call device, and

A relay server which receives identification information of one side of the call and identification information of the call counterpart from the call module, establishes a channel, and relays transmission and reception of the call signal via the established channel;

It provides an IP call system comprising a.

In the IP currency system according to the present invention,

The relay server checks the identification information of the call counterpart from the identification information transmitted by the call party, and push signal based on the identification information of the call counterpart so that the call module in the communication terminal of the call counterpart accesses the channel. It is desirable to send it.

According to the present invention, the calling party does not need to restart the call procedure from the beginning in order to convert the call method to the IP call during the general call, and it is possible to convert and continue the call with a simple operation, thereby maintaining the continuity of the call. There is an effect that can make a change in the currency.

1 is a block diagram illustrating a communication terminal having an IP call apparatus according to the present invention and an IP call system including the communication terminal.
2 is a flowchart sequentially illustrating a method of converting a currency type according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a communication terminal having an IP call apparatus according to the present invention and an IP call system including the communication terminal.

As shown in Figure 1, IP (IP, Internet Protocol) call device 120, 120 'according to the present invention call identification information of the phone app (110, 110') configured in the communication terminal (100, 100 ') It is installed to check and to proceed with IP call based on this.

Here, the phone app (110, 110 ') is a typical application designed to allow the communication terminal (100, 100') to perform a call function, when the user of the communication terminal (100, 100 ') booting does not need to run separately When the communication terminal 100, 100 'is in the ON state, the communication terminal 100, 100' is maintained in the communication state with the switch 200 through polling while continuing its execution, while actively transmitting the call signal of the switch 200. Receive it and make it known to the calling party. As a result, the phone app 110, 110 ′ maintains a communication state with the signaling system promised by the switch 200, and control by the switch 200 is permitted. For reference, the communication terminals 100 and 100 'are connected through the switch 200 and the base stations a and a', and the base stations a and a 'are within the predetermined radius of the communication terminals 100 and 100'. It is possible to track the position of the communication terminal (100, 100 ') while processing the communication. Since the communication technology through the base stations (a, a ') is a known and public technology, detailed descriptions of hardware and software constituting the base stations (a, a') are omitted here.

IP call device (120, 120 ') is composed of a confirmation module (121, 121') and a call module (122, 122 ').

Confirmation module (121, 121 ') is to confirm the identification information of the call counterpart from the phone app (110, 110') currently processing the general call, the identified identification information is the phone number of the call counterpart, ID of the call counterpart (USIM Information, etc.).

The process of confirming the identification information by the confirmation modules 121 and 121 'will be described in more detail. As is known, the phone app (110, 110 ') requests the operating system (OS) to execute the "OFF HOOK" function for the general call progress, the event handler 130 of the OS to execute the event of the function The phone app (110, 110 ') transmits the phone number of the one party and the phone number of the call counterpart to the exchange 200 so that the general call operation can proceed normally. Here, identification information such as a phone number of the call counterpart is recorded in the call log information for the general call generated by the event handler 130. Confirmation module (121, 121 ') checks the identification information of the call counterpart used for the general call progress in the call history information, and collects the identification information for the IP call. The time at which the identification modules 121 and 121 'confirm the identification information from the call history information may be executing the "OFF HOOK" function of the event handler 130 or may be executing the "ON HOOK" function. The appearance will be described in detail while explaining a method of converting a currency method according to the present invention.

The call modules 122 and 122 'communicate with the call modules 122 and 122' of the call counterpart so that the voice call can be performed through a voice over internet protocol (VoIP). The call module 122, 122 'transmits a call signal (including voice data) of one or a call counterpart to a voice packet network that is distinct from a public switched telephone network (PSTN) to which the phone apps 110 and 110' are connected. Since a voice call is made between one party and a call counterpart, a caller can be identified by identifying an identifier for identifying a caller in a voice packet network, such as an identifier such as a telephone number of the public switched telephone network. In an embodiment according to the present invention, the subscriber (call one, call counterpart) inputs a telephone number used in the public switched telephone network as an identifier of a voice packet network for an IP call according to the present invention. 121 ') confirms the call counterpart's phone number from the call log information so that the call counterpart can be connected to the voice packet network based on the phone number.

For reference, VoIP can send not only voice but also video using ITU-I standard Codec H.323.

The algorithm applied to the voice call system based on the voice packet network and the call modules 122 and 122 'for this is a well-known and public technique, and therefore, the processing of the source and the call signal of the call modules 122 and 122' are described here. The description of the process is omitted.

Meanwhile, the call modules 122 and 122 'may be implemented by a general voice call method, but may be implemented as a walkie-talkie type voice call to minimize the amount of communication data between one call and the other party. It may be. The walkie-talkie is configured such that when one side of the call transmits a call signal including voice data, the call counterpart cannot transmit its own call signal while receiving the call signal, thereby significantly reducing the amount of communication data between the call parties. . In other words, the walkie-talkie method allows the communication signal between the communication terminals 100 and 100 'to be selectively transmitted only in one direction, thereby reducing the amount of communication data between the communication terminals 100 and 100'.

The relay server 200 'relays an IP call between one call and a call counterpart using the call modules 122 and 122', and establishes a channel based on the identification information transmitted from the call modules 122 and 122 '. And a relay module 210 for performing a normal relay process for an IP call through the channel.

The relay server 200 ′ is an exchange server of a telecommunication company that provides a general IP call service, and performs a relay function for an IP call that a voice call-only application based on Voice over Internet Protocol (VoIP) attempts. Here, the relay function means that when the voice packet network-specific identification information is received from the communication terminal 100 of one of the calls, the channel related to the identification information is opened, and the call terminal 100 'of the corresponding call counterpart is polled or pushed. Through this, the channel can be accessed, and through this, the call terminal 100 of one side of the call and the call terminal 100 'of the call counterpart can perform an IP call through the channel. For reference, VoIP-based voice call-only applications have been introduced in various types such as Skype, WiCall, VoXMobile, Daum People, and these existing voice call-only applications include a relay server that opens a channel for IP call relaying. It is configured.

The relay module 210 receives identification information of one call and a call counterpart transmitted by the call module 122 in the communication terminal 100 of one call, and mediates connection between one call and a call counterpart corresponding to the identification information. The channel is established in the relay server 200 '.

Here, the establishment of the channel means that the relay module 210 directly connects the communication terminal 100 of one side of the call with the communication terminal 100 'of the call counterpart in the voice packet network, so that the call signal of the packet unit is exchanged immediately. It means setting the path so that it can be. Briefly describing the access process for the channel, the call module 122 of the call requesting the establishment of the channel while transmitting the identification information when the channel of the relay module 210 is opened is connected to the channel establishment at the same time, The call module 122 'checks whether the channel is opened while polling the relay server 200' and accesses the channel, or after the relay module 210 opens the channel, a signal is transmitted to the communication terminal 100 'of the call counterpart. Push to allow the call module 122 'in the communication terminal 100' of the call counterpart to access the channel.

On the other hand, the relay server 200 ′ may allow IP calls to be made only to members subscribed to the relay server 200 ′. To this end, when the relay module 210 of the relay server 200 'receives the identification information from the call modules 122 and 122' of the communication terminal 100 or 100 ', it checks the identification information to determine whether to register as a member. If both of the call and the other party in the identification information is confirmed as a member, a channel is opened. Here, if one or more of the call in the identification information or one or more of the call counterpart is unidentified as a member, the relay module 210 withholds the channel establishment, the communication terminal (100, 100 ') corresponding to the query requesting membership application Can also be sent. In order to determine whether the relay module 210 joins the identification information that attempts to make an IP call, a member DB (not shown) capable of searching for the identification information transmitted by the communication terminal 100 of one of the calls is relayed. It may be included in the server 200 '.

A more detailed description of the relay module 210 will be described in detail while explaining a method of converting a currency.

2 is a flowchart sequentially illustrating a method of converting a currency according to the present invention, which will be described with reference to the drawing.

S11; Call Step

The calling party proceeds with the general call through the phone app (110, 110 ').

As described above, the phone app (110, 110 ') is a device configured to connect to the public switched telephone network, the exchange 200 through the base station (a, a') a call signal containing voice data input by the calling party And receive the corresponding call signal from the switch 200 so that the OS and hardware of the communication terminal 100, 100 'can output it.

Explain in more detail the general currency process.

The caller 110 or 110 ′ of the caller or the receiver requests an "OFF HOOK" function to the OS at the start of a general call, and the event handler 130 handles the "OFF HOOK" function so that a corresponding event occurs. Subsequently, the caller controls the phone app 110 of the communication terminal 100 to input the recipient's phone number (identification information), and then to the switchboard 200 of the public switched telephone network together with the caller's phone number (identification information). send. At this time, the call log information in the caller's communication terminal 100 includes the phone number (identification information) of the caller and the receiver sent by the phone app 110.

Switch 200 establishes a channel based on the phone number sent by the caller's phone app 110.

The phone app 110 'in the communication terminal 100' of the receiver periodically polls and connects to the exchange 200 to check whether the channel is opened, and confirms the channel establishment based on his / her telephone number. "Request the function to the OS. The event handler 130 'handles the " OFF HOOK " function to cause the corresponding event to occur, thereby allowing the phone app 110' to normally proceed with the general call through the open channel of the exchange 200. At this time, the call history information in the communication terminal 100 'of the receiver includes a phone number (identification information) of the caller and the receiver received by the phone app 110'.

As a result, when a general call is initiated together with an event by the " OFF HOOK " function, identification information of the sender and the receiver is stored as call history information in the communication terminals 100 and 100 'of the sender and the receiver.

On the other hand, the sender or the receiver may offer a call conversion to the call partner during the general call. In other words, it is possible to propose to convert a general call into an IP call. The called party accepts the offer, and the caller and the receiver can prepare to end the current general call.

S12; End call

Depending on the caller's or receiver's call termination button operation, the phone app 110 or 110 'requests the OS for the "ON HOOK" function, and the corresponding event handler 130 and 130' handles the "ON HOOK" function to handle the call. End the call. The corresponding phone app (110, 110 ') terminating the general call releases the channel connection of the switchboard 200, the phone app (110, 110') of the other caller also confirms the channel connection release of the other party to the channel Request the "ON HOOK" function from the OS while disconnecting.

S13; Identification Information Confirmation Step

The identification modules 121 and 121 'of the IP call devices 120 and 120' check the call log information of the recent general call identification information of the phone app 110 or 110 '.

In an embodiment according to the present invention, the call log information check point of the confirmation modules 121 and 121 'may be the identification information recorded at the "OFF HOOK" handling point of the event handlers 130 and 130' (first embodiment). For example, it may be set as identification information recorded at the time of handling the "ON HOOK" (second embodiment).

In the case of the first embodiment, the general call is confirmed through the recognition of the "OFF HOOK" function handling, and the IP call devices 120 and 120 'are executed in conjunction with the phone apps 110 and 110'. In the second embodiment, when the end of the general call is confirmed through the recognition of the “ON HOOK” function handling, the IP call devices 120 and 120 'are executed.

For reference, regardless of the first and second embodiments, the general call identification information stored in the IP call device 120 or 120 'in the call terminal 100 or 100' of the party who has made the general call may be identified by the recent caller. Is updated to be the same as. Of course, if the sender or the receiver among the parties newly initiates a general call with the third party, only the general call identification information stored by the IP caller device 120 or 120 'of the sender or receiver is updated, and thus the party is storing the call. The identity of identification is lost.

S14; Identification information transmission step

One of the callers and receivers of a general call attempts to make an IP call. To this end, the call terminals 100 and 100 'in which the IP call devices 120 and 120' are installed may include icons or buttons for executing the call modules 122 and 122 '.

One side of the call operates the icon or button to execute the call module 122, and the call module 122 transmits the identification information checked by the check module 121 to the relay server 200 ′.

S15; Channel opening stage

The relay module 210 of the relay server 200 'receives and confirms the identification information, and establishes a channel for identification information of one call and identification information of a call counterpart included in the identification information.

The relay module 210 may check whether one side of the call and the other party of the call are members based on the identification information before opening the channel, and stop opening the channel if the member is not a member.

S16; IP call connection stage

When a channel is established in the relay server 200 ', the call module 122' in the communication terminal 100 'of the call counterpart accesses the channel. In this case, in order for the call module 122 'of the call counterpart to access the channel, a public polling method or a public polling method or a push method may be applied.

(1) polling method

If the call module 122, 122 'of the IP call device 120, 120' confirms the end of the general call by the phone app 110, 110 'through the recognition of the handling of the "ON HOOK" function, While repeating the polling for the relay server 200 'to check whether the channel is opened. The method of converting a call method according to the present invention is a technology for continuing an IP call in place of a general call, and is performed for the purpose of continuing the IP call within a short time after the caller disconnects the general call, so that the caller is connected to the relay server 200 '. In order to establish a channel, polling for the relay server 200 'is repeated for a predetermined time. Of course, when one of the calling parties makes a general call with a third party, the identification information stored by the IP calling device 120 or 120 'is newly updated, so if the polling is repeated only for a certain time after the corresponding general call ends. It will be enough.

(2) push method

The relay module 210 opens a channel based on the identification information transmitted from the communication terminal 100 of one side of the call, and transmits a push signal based on the identification information of the other party in the communication terminal 100 'of the call counterpart. The call module 122 'enables access to the channel in the relay server 200'.

In case of the push method, the channel can be connected to the channel based on the push signal of the relay server 200 'regardless of the recent identification information stored in the IP call apparatus 120 or 120' in the communication terminal 100 or 100 '. Even if the caller is talking with the third party and the latest identification information of the communication terminal 100 'of the call counterpart is updated, the latest identification information of one communication terminal 100 of the call counterpart is the communication terminal 100 of the call counterpart. '), And if the IP call device 120 in the communication terminal 100 of the call initiates an IP call based on the identification information, and opens a channel, based on the push signal of the relay module 210, The IP call device 120 'in the communication terminal 100' of the call counterpart is connected to the channel.

Subsequently, the call module 122 of one side of the call and the call module 122 'of the call counterpart communicate with each other via a corresponding channel opened by the relay module 210 of the relay server 200'. The call module 122, 122 'packetizes a call signal including voice data input by one side of a call and a call counterpart, and transmits the call signal to the relay server 200'.

The call modules 122 and 122 'packet-process a call signal including voice data for an IP call, and transmit and receive the packet-processed call signal to a call partner through a channel established in the relay server 200'. An IP call dedicated module, which is configured in a conventional Internet telephone.

As another embodiment according to the present invention, the channel establishment in the relay server 200 'may be performed during a general call. To describe this in more detail, the communication module 100 of the communication terminal 100 of the one-way checks the identification information of the call counterpart from the call history information of the general call of the phone app 110, the call module 122 Is transmitted to the relay server 200 'along with the identification information of one side of the call.

The relay module 210 of the relay server 200 'opens a channel according to the identification information transmitted from the communication terminal 100 of one side of the call, and transmits a push signal based on the identification information of the call counterpart.

The communication module 122 'in the communication terminal 100' of the call counterpart who is conducting a general call with the communication terminal 100 of one side of the call receives the push signal and receives an IP call through an output unit (not shown). You can pop up a query window asking if you want to continue.

When the call counterpart ends the general call in response to the query window, the call module 122 'in the communication terminal 100' of the call counterpart connects to the channel of the relay server 200 'and thereby makes a call with one of the calls. IP calls continue. Of course, the end of the general call of one side of the call through the end of the general call of the other party ends with the normal process with the IP call continuing. For reference, the query window may include a button for replying whether the IP call is continued or not, and when the button agreeing to the IP call is clicked, the program is automatically linked to the corresponding channel while the general call is terminated. Can be.

The function of the query window may be replaced by the conversation of the general calling party. In other words, one side of the call orally offers a call to the other party to guide the channel opening, and the other party can continue the IP call by ending the current general call in recognition state.

In the embodiment according to the present invention, the communication content of the IP call converted during the general call or after the end of the general call is illustrated as voice data (voice call) of one party and the other party, but the present invention is not limited thereto. Music content, video content, and image content to be transmitted may vary.

For example, if the content is music content, one of the calls may transmit the music content to the call counterpart in real time through the IP call line during the general call or after the end of the general call through the IP call connection step. One party and the other party can share the music content.

Video content and image content can also be shared by one side of the call and the other party through the same path as the music content.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100, 100 '; Communication terminal 110, 110 '; Phone
120, 120 '; IP call device 121, 121 '; Confirmation module
122, 122 '; Call module 130, 130 '; Event handler
200; Exchanger 200 '; Relay server
210; Relay module

Claims (12)

An identification information checking step of confirming, by the IP communication apparatus of the communication terminal, identification information of the call counterpart from the call history information; An identification information transmitting step of transmitting, by the IP communication apparatus in one communication terminal, the identification information of the one party and the identification information of the other party to the relay server; A channel establishing step of the relay server establishing a channel according to the identification information; In the method of converting a call method to an IP call, comprising: an IP call connection step of connecting an IP call device in a communication terminal of one of the calls and a call counterpart via the channel;
The identifying information checking step may further include, when the IP calling apparatus recognizes an "OFF HOOK" function or an "ON HOOK" function handling of an OS, confirming identification information of the call counterpart;
The identification information includes the other party's telephone number, ID
Currency conversion method to IP currency, characterized in that. delete delete According to claim 1, wherein the IP call connection step
Accessing, by the IP communication device in the communication terminal of the call counterpart, the polling method to the relay server for a predetermined time after the general call of the phone app is finished; And
Checking and establishing an established channel;
Currency conversion method to IP currency, characterized in that it comprises a. The method of claim 1, wherein the channel establishment step
Transmitting, by the relay server, a push signal to a communication terminal of the call counterpart based on the identification information of the call counterpart;
Currency conversion method to IP currency, characterized in that it further comprises. The method according to claim 1,
In the IP call connection step, the call signal is transferred to the IP call method, characterized in that the communication between the communication terminal of the one side and the other party of the call is transmitted and received in a walkie-talkie system only selectively in one direction. The method according to claim 1,
The identification information of the call counterpart confirmed in the identification information checking step is identification information of a call counterpart currently in a general call,
In the IP call connection step, the phone app terminates the general call, and the IP call device of the call party and the call partner is connected to the IP call, characterized in that connected via the channel. Confirm the identification information of the call counterpart from the call history information, the identification information is confirmed after handling the "OFF HOOK" function or "ON HOOK" function handling of the OS in the communication terminal, the identification information is the phone number, ID of the other party Confirmation module comprising a; And
A call module which transmits the identification information to a relay server for relaying an IP call, packetizes a call signal including voice data input and output during an IP call, and transmits and receives the call signal through a channel of the relay server;
IP phone apparatus comprising a. delete The method of claim 8,
When the call module recognizes the end of the general call of the phone app, the IP call device, characterized in that to connect to the relay server in a polling method for a predetermined time to confirm the channel establishment. delete delete

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