Media stream proxy method, voice exchanger and communication system
A technology of switches and media streams, applied in the field of communications, can solve the problems of high cost and complex proxy methods, and achieve the effect of reducing costs, simplifying proxy methods, and solving the problem of call isolation.
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Embodiment 1
[0036] This embodiment describes a media stream proxy method, see figure 2 , the method may include the following steps:
[0037] Step 101: When the calling user initiates a call with the called user, the signaling is converted by the network address translation device and sent to the voice switch, and the voice switch constructs the address and port information of the called user;
[0038] The address and port information of the called user constructed above corresponds to the received address information of the registered called user after network address translation;
[0039] Before step 101, a step may also be included: the voice exchange receives the address information of the registered called user after network address translation.
[0040] Certainly, the above-mentioned called user can also initiate a conversation with the calling user as the calling party, and at this moment the calling user just becomes the called party, and the process and steps performed by the v...
Embodiment 2
[0059] The calling user and the called user are users in the private network, and the voice switch is in the VOIP private network. If the calling user and the called user want to realize the conversation, it must be realized through the voice switch, and the network address translation device is located in the The interface between the private network and the VOIP private network, usually it can be a device such as a firewall.
[0060] see image 3 , image 3 Network diagram for the calling user and called user to register with the voice switch through the network address translation device. After the calling user and the called user are powered on, they register with the voice switch, and the voice switch receives the address converted by the network address translation device. Finally, the exchange registration signaling with the converted address of the calling user and the called user is to send the constructed address to the calling user and the called user through the n...
Embodiment 3
[0064] see Figure 4 , Figure 4 It is the network diagram of the voice switch to realize the media stream proxy. When the voice switch constructs the address, it regards itself as the calling user, constructs the address and port information of the called user, for example (10.0.0.40:7000), and establishes the calling user The call signaling is sent to the network address translation device corresponding to the called user, and then forwarded to the called user by the network address translation device. The called user also needs to convert the signaling through the network address translation device and send the signaling to the voice switch. At this time, the voice switch needs to regard itself as the called user and construct the address and port information of the calling user, for example (10.0.0.40:7002) , sending the above information to the network address translation device corresponding to the calling user, and then forwarded to the calling user by the network addr...
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