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Method and system for transferring internet protocol private branch exchange (IPPBX) internal number to external internet telephony service provider (ITSP) public numbers

An internal number and transfer call technology, applied in transmission systems, user signaling identification equipment, interconnection devices, etc., can solve problems such as transfer failures

Active Publication Date: 2014-05-07
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When C transfers the second call successfully, hangs up and sends a transfer request, and the call information sent by C is only related to the internal number. At this time, if the request is simply transferred to ITSP, the transfer will definitely fail

Method used

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  • Method and system for transferring internet protocol private branch exchange (IPPBX) internal number to external internet telephony service provider (ITSP) public numbers
  • Method and system for transferring internet protocol private branch exchange (IPPBX) internal number to external internet telephony service provider (ITSP) public numbers

Examples

Experimental program
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Embodiment Construction

[0033] like figure 1 The call forwarding system shown includes IPPBX and ITSP server. The IPPBX is connected to the ITSP server through the IP network, and the communication terminals connected to the ITSP server are all assigned with ITSP public numbers (the ITSP public numbers of the communication terminals connected to the ITSP server are referred to herein as External ITSP public number), the internal communication terminals of the enterprise are connected to IPPBX, and IPPBX assigns IPPBX internal numbers to these communication terminals, and IPPBX itself stores the ITSP public number assigned by the ITSP server.

[0034] ITSP server is used to assign ITSP public numbers to IPPBX;

[0035] IPPBX is used in the following three aspects:

[0036] 1. Registration management: responsible for the registration and cancellation of ITSP public numbers;

[0037] 2. Call control: responsible for the communication connection and control between the internal number of IPPBX and the ...

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PUM

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Abstract

The invention provides a method for transferring an internet protocol private branch exchange (IPPBX) internal number to external internet telephony service provider (ITSP) public numbers, and a system for realizing the method. The method comprises the following steps that: the IPPBX internal number successfully establishes calling with two ITSP public numbers through an IPPBX respectively, and the IPPBX records the calling information of the two routes of calls; and a corresponding telephone of the IPPBX internal number as a transferring part initiates calling transferring, the IPPBX finishes calling transferring according to the calling information of the two recorded routes of calls.

Description

technical field [0001] The present invention relates to call control technology in the field of SIP (Session Initiation Protocol). Background technique [0002] IPPBX is a PBX (Private Branch eXchange, program-controlled exchange) based on IP (Internet Protocol, Internet). Relay function; ITSP will assign a group of public phone numbers to IPPBX. For enterprise IPPBX, there are generally a large number of extensions connected, and each extension uses internal numbers to communicate with each other through IPPBX. Since each extension number and ITSP public phone number are not configured according to 1:1, when an enterprise extension dials an external number, it needs to Convert to public phone number to communicate with ITSP. When an external phone calls a corporate phone, it first dials the public phone number assigned to IPPBX, and then transfers to the internal extension. [0003] There is no problem at all in the above existing implementations for completing basic cal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/26H04M7/00H04L29/06
Inventor 李奕侯小军杨万云
Owner MAIPU COMM TECH CO LTD
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