reinvite

session be established between the two; The destination party returns a SIP response message with a description of the accepted session parameters, accepting the session establishment request The initiator sends a SIP request message (ACK) to confirm the establishment of the session. A simple example of a modified session is as follows: Either party in the session can send a SIP request message (Reinvite) that contains the propo

negotiated at call setup.Application in the real world The server that we have specified for this application has the ability to handle around und 1000 concurrent CILS through the gateway and enough storage for voicemail boxes for all users. CILS have no real effect on the server inside the PBX because of one of the amazing SIP features: reinvite. the reinvite feature allows the SIP proxy to set up the cal

with milliseconds. (9) Canreinvite: Format: Canreinvite =update|yes|no|nonat. In the SIP protocol, the invitation is used to initiate the call, redirecting the media. Any invitations that are initiated in the same conversation after the initial invitation are considered re-invited (Reinvite). Configuring Canreinvite=no allows the asterisk media channel to pass through itself without allowing RTP information to be transmitted directly between endpoint

Call wait: 1. B. Disconnect the host and call the C number;2. c. Listen to the return tone;3. B disconnects. C and B;4. A. Remove the host. Call B's number;5. B Listen to the prompt sound ("beep"). A listen to "the user you are calling is on the phone. Please do not hook up now"6. B users can freely choose to answer a's call, reject a's call, or switch between A and C by making the button and not responding. 1. The process of establishing a call between B and C is omitted. 2. When a calls B

Basic settings of SIP Trunk in trixbox Http://www.voclub.net/zone? Action-viewthread-tid-1065The basic settings of the SIP Trunk in trixbox are as follows: the extension can call the phone number through a SIP Trunk, and then ring the trunk number to the extension. Create a new SIP Trunk, provided that you have obtained a sip account that can be connected to an external line. Dial rules: X. Here I set the simplest X. Because X represents any number 0-9, and X represents any length, so this trun

Doinvite () done/missing status procession Dosucesseresponse () done/missing status procession Addsdpmrs () done Dorequest () done/missing status procession Doprovisionalresponse () done/missing status procession Whether it is a call persistence or waiting signal, the server does not actually care about it. You only need to confirm that it contains sendonly, and add Mrs without sendonly. recvonly is the same. The key is how to handle the 200 OK message sent by B to the server after C is maint