SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.32.84:5060;branch=z9hG4bK264f778bf;received=192.168.32.84;rport=5060
From: "3063" <sip:3063@192.168.32.1:5060>;tag=b933f6df96c0394
To: <sip:7777@192.168.32.1:5060>;tag=as5c6983e5
Call-ID: cf13916b9c856f11a0d52fa4848ff1c2@192.168.32.84
CSeq: 10003 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Contact: <sip:7777@192.168.32.1>
Content-Type: application/sdp
Content-Length: 184

v=0
o=root 15123 15124 IN IP4 192.168.32.1
s=session
c=IN IP4 192.168.32.1
t=0 0
m=audio 15136 RTP/AVP 0
a=rtpmap:0 PCMU/8000
a=silenceSupp:off - - - -
a=ptime:20
a=recvonly