SIP: Attribute mid, level 1 instance 1 not found.
2524735: Feb 11 17:54:53.522 MST: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 200 OK
Via: SIP/2.0/UDP >:5060;branch=z9hG4bK2D041732
Record-Route:
From: “Bob Jones” ;tag=BAAA8198-462
To: ;tag=_1255064163-933720387
Call-ID: 876EDB09-357911E0-970ADCDF-F107A873@>
CSeq: 101 INVITE
Contact: sip:+18004444444@67.231.0.94:5070
Accept: application/sdp, application/isup, application/dtmf, application/dtmf-relay,  multipart/mixed
Allow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS,MESSAGE,PUBLISH
Content-Disposition: session; handling=required
Content-Type: application/sdp
Content-Length: 276

v=0
o=pvp 305419896 305419896 IN IP4 67.231.0.125
s=-

! MEDIA GATEWAY – this is the carrier your SIP provider is having route your call. The IPs may change even if it’s the same carrier but an IP whois lookup will show you which carrier your call is routing through. 
c=IN IP4 67.231.0.125

t=0 0
m=audio 24396 RTP/AVP 0 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=maxptime:40
a=sendrecv