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sipinvite

What is maximum waiting time for SIP INVITE method

I have a scheme like this https://prnt.sc/176ry00

What is maximum waiting time for 200 OK response?

Solution

  • There isn't. There is a max waiting time for the first non-100 provisional response to the SIP INVITE request, which is equal to the transaction timeout (Timer B, 64*T1). After the provisional response has been received it is up to the application or user to decide when to stop waiting for the final response.

    See Client INVITE transaction in RFC 3261.