Using INVITE request as basis request - 1bc4788e2fabb5c11b5b020b3265b76d@65.112.159.21
Sending to 216.143.130.28 : 5060 (non-NAT)
Nov 28 15:32:55 WARNING[10111]: chan_sip.c:3470 process_sdp: Unknown SDP media type in offer: image 19334 udptl t38
Transmitting (no NAT) to 216.143.130.28:5060:
SIP/2.0 488 Not acceptable here
Via: SIP/2.0/UDP  216.143.130.28:5060;branch=z9hG4bK8185131;received=216.143.130.28
From: <sip:17606830496@216.143.130.28>;tag=3810C604-1ABF
To: "Sjobeck Test" <sip:4321@65.112.159.21>;tag=as73ef1246
Call-ID: 1bc4788e2fabb5c11b5b020b3265b76d@65.112.159.21
CSeq: 101 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Max-Forwards: 70
Contact: <sip:4321@65.112.159.21>
Content-Length: 0
X-Asterisk-HangupCause: Normal Clearing