SIP .NET > Tutorial > Invite

The Invite method is used to establish media sessions between user agents. In the example below see how Bob makes phone call to Alice. Bob sends following session description for this call.

o=Bob 16264 18299 IN IP4
s=SIP Call
c=IN IP4
t=0 0
m=audio 25282 RTP/AVP 0 101
a=rtpmap:0 pcmu/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11

C# example
VB example

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