sip set debug peer new
SIP Debugging Enabled for IP: 91.218.111.145

<--- SIP read from UDP:91.218.111.145:5060 --->
INVITE sip:s@172.16.20.123:5060 SIP/2.0
Via: SIP/2.0/UDP 91.218.111.145:5060;rport;branch=z9hG4bK-fc2dd4b4030d11ea8da6782bcb0acaea;sig=21a152b6
Via: SIP/2.0/UDP 2LgN1H6wRYmw;rport;branch=z9hG4bK-fc2dcce4030d11ea8da6782bcb0acaea;sig=72f8fc2f;gr=i_G8oJbx57UhszahK7Pv9qxJ2cABrSTRggDY4bMvhaxcFVfb0B7gEMABWoW8qdU4dQvuqEPDUo4WW11XWAdQb_2wUoqUOjA2tFF-9qxgV7byfbKMu2vUTc1VnTnhzdqZSqwkjoe_Xb1YcHZaCvkAOKK8
From: <sip:79055797907@91.218.111.145:5060;user=phone>;tag=KS4I9eFb2m-SE8XhW9pvkhPElDKgOQAq
To: <sip:74999599580@172.16.20.123:5060;user=phone>
Call-ID: 1FFDA2806AFF233C6921282ED8E22036
CSeq: 1 INVITE
Contact: <sip:79055797907@91.218.111.145:5060;user=phone>
Content-Type: application/sdp
Allow: ACK, BYE, CANCEL, INFO, INVITE, OPTIONS, REFER, REGISTER, SUBSCRIBE, UPDATE
Max-Forwards: 69
User-Agent: TS-v4.7.3-06b
Cisco-Guid: 213454938-51253738-2335668267-3406482010
Content-Length: 421

v=0
o=- 1573316918 1573316918 IN IP4 91.218.111.145
s=-
c=IN IP4 91.218.111.145
t=0 0
m=audio 16506 RTP/AVP 8 0 18 96
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:96 telephone-event/8000
a=fmtp:96 0-15
a=ptime:20
a=sendrecv
a=silenceSupp:off - - - -
m=image 16508 udptl t38
a=T38FaxRateManagement:transferredTCF
a=T38FaxUdpEC:t38UDPRedundancy
a=sendrecv
<------------->
--- (14 headers 19 lines) ---
Sending to 91.218.111.145:5060 (NAT)
Using INVITE request as basis request - 1FFDA2806AFF233C6921282ED8E22036
Found peer 'new' for '79055797907' from 91.218.111.145:5060
  == Using SIP RTP TOS bits 184
  == Using SIP RTP CoS mark 5
Found RTP audio format 8
Found RTP audio format 0
Found RTP audio format 18
Found RTP audio format 96
Found audio description format PCMA for ID 8
Found audio description format PCMU for ID 0
Found audio description format G729 for ID 18
Found audio description format telephone-event for ID 96

<--- Reliably Transmitting (NAT) to 91.218.111.145:5060 --->
SIP/2.0 488 Not acceptable here
Via: SIP/2.0/UDP 91.218.111.145:5060;branch=z9hG4bK-fc2dd4b4030d11ea8da6782bcb0acaea;sig=21a152b6;received=91.218.111.145;rport=5060
Via: SIP/2.0/UDP 2LgN1H6wRYmw;rport;branch=z9hG4bK-fc2dcce4030d11ea8da6782bcb0acaea;sig=72f8fc2f;gr=i_G8oJbx57UhszahK7Pv9qxJ2cABrSTRggDY4bMvhaxcFVfb0B7gEMABWoW8qdU4dQvuqEPDUo4WW11XWAdQb_2wUoqUOjA2tFF-9qxgV7byfbKMu2vUTc1VnTnhzdqZSqwkjoe_Xb1YcHZaCvkAOKK8
From: <sip:79055797907@91.218.111.145:5060;user=phone>;tag=KS4I9eFb2m-SE8XhW9pvkhPElDKgOQAq
To: <sip:74999599580@172.16.20.123:5060;user=phone>;tag=as5970ceed
Call-ID: 1FFDA2806AFF233C6921282ED8E22036
CSeq: 1 INVITE
Server: FPBX-2.8.1(1.8.20.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Length: 0


<------------>
Scheduling destruction of SIP dialog '1FFDA2806AFF233C6921282ED8E22036' in 6400 ms (Method: INVITE)

<--- SIP read from UDP:91.218.111.145:5060 --->
ACK sip:s@172.16.20.123:5060 SIP/2.0
Via: SIP/2.0/UDP 91.218.111.145:5060;rport;branch=z9hG4bK-fc2dd4b4030d11ea8da6782bcb0acaea;sig=21a152b6
From: <sip:79055797907@91.218.111.145:5060;user=phone>;tag=KS4I9eFb2m-SE8XhW9pvkhPElDKgOQAq
To: <sip:74999599580@172.16.20.123:5060;user=phone>;tag=as5970ceed
Call-ID: 1FFDA2806AFF233C6921282ED8E22036
Max-Forwards: 70
CSeq: 1 ACK
Content-Length: 0

<------------->
--- (8 headers 0 lines) ---
Really destroying SIP dialog '1FFDA2806AFF233C6921282ED8E22036' Method: ACK
sbc*CLI> sip set debug off