Collecting DTMF digits (continued)

Collecting DTMF digits (continued)

Response “3. 200 OK” looks like:

SIP/2.0 200 OK
Via: SIP/2.0/UDP 100.101.102.103
To: User A <sip:UserA@here.com> From: UserB <sip:UserB@there.com>
Call-ID: a84b4c76e66710100.101.102.103 CSeq: 1 INVITE
Contact: <sip:UserB@there.com> Content-Type: application/sdp Content-Length: …
v=0
o=UserA 289375749 289375749 IN IP5 110.111.112.113 S=-
c=IN IP4 110.111.112.113
t=0 0
m=audio 5004 RTP/AVP 0

Transcript

[slide488] It looks like this.