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Call forwarding method under VoIP (voice over Internet protocol) of intelligent terminal

A technology of call forwarding and intelligent terminal, which is applied in communication supplementary services, transmission systems, electrical components, etc. It can solve problems such as adding interactive signaling, failing to successfully perform call forwarding, changing basic call procedures, etc., and achieving good compatibility , Simplified transfer process, simple logic effect

Active Publication Date: 2015-04-08
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0040] The technical problem to be solved by the present invention is: to propose an efficient call transfer method for intelligent terminal VoIP, to solve the problems existing in the intelligent terminal VoIP call transfer scheme in the traditional technology, which need to change the basic call flow, need to increase interactive signaling, and exist at the same time In the case of multiple calls, the call transfer cannot be successfully performed

Method used

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  • Call forwarding method under VoIP (voice over Internet protocol) of intelligent terminal
  • Call forwarding method under VoIP (voice over Internet protocol) of intelligent terminal
  • Call forwarding method under VoIP (voice over Internet protocol) of intelligent terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0075] This example is for the situation where the transferring party hangs up after talking with the transferred party, such as figure 2 As shown (in order to focus on the transfer process, the establishment and maintenance of the first call are simplified, not fully shown), the call transfer process is as follows:

[0076] 1) The calling party dials the called number, and sends an INVITE message including this call (the first call) to the VoIP server, which contains the relevant information of this call: call-id1, from1, to1, and the VoIP server receives The INVITE message is then sent to the called party; at this time, the called party rings, and the calling party listens to the ringback tone. call; RTP1 in the figure indicates that a call has been established between the calling party and the called party, and RTP media streams are sent to each other;

[0077] 2) When the called party wishes to transfer the first call to the transferred party as the transferring party, i...

Embodiment 2

[0086] This example is for the situation that the transferring party and the transferred party are not on the phone (after the transferring party hears the ringback tone of the transferred party) hang up, such as image 3 As shown, the difference between it and the process of hanging up after a call:

[0087] 1. After the transferring party hangs up, the VoIP server will send 180 RING to the caller, and the caller will hear the ring back tone.

[0088] 2. After the transferring party hangs up, the VoIP server immediately releases the first call and the second call.

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Abstract

The invention relates to a telephone call forwarding technology, and discloses a high-efficiency call forwarding method under the VoIP (voice over Internet protocol) of an intelligent terminal, the problems that basic call flows need to be changed, interaction signaling needs to be added, and call forwarding cannot be successfully performed under the condition that multiple calls exist simultaneously are solved by adopting the call forwarding scheme under the VoIP of the intelligent terminal in the prior art. The call forwarding method comprises the following steps: A, establishing a first call between a first terminal and a second terminal; B, when the second terminal needs to forward the call of the first terminal to a third terminal, firstly, keeping the first call, and then, sending an INVITE message of a second call to a VoIP server, wherein the INVITE message carries the relevant information of the first call; C, after the INVITE message is received by the VoIP server, establishing the second call between the second terminal and the third terminal, and associating the first call with the second call; D, after the second terminal is hung up, establishing a third call between the first terminal and the third terminal by the VoIP server. The call forwarding method disclosed by the invention is suitable for single-terminal and multi-call telephone call forwarding.

Description

technical field [0001] The invention relates to a telephone call transfer technology, in particular to an efficient call transfer method for an intelligent terminal VoIP. Background technique [0002] With the rapid development of today's network, the network bandwidth is getting higher and higher, and the cost of network data transmission is getting lower and lower. Coupled with the popularity of WLAN in recent years, 3G / 4G bandwidth is getting higher and higher, and the ultra-high-speed development of smart terminals. Compared with the high charges of traditional operators, "free" VoIP calls have a huge advantage in the competition. People's demand for VoIP services is getting higher and higher with the development of the network. VoIP (Voice over IP) is a switching network based on IP packets. Through a series of processes such as digitizing, compressing, packaging, and encapsulating traditional analog voice signals, voice services can be carried by IP networks. In a b...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W4/16
CPCH04L65/1066H04L65/1069H04W4/16
Inventor 李挺
Owner MAIPU COMM TECH CO LTD
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