Hello,
I’m using Asterisk 13.9.1 and at the hangup() the SIP BYE message is not sent out the server because sip_xmit return -2. Googling around I only found occurrences where sip_xmit return -1 but that is not my case.
What value -2 would mean ?
Scheduling destruction of SIP dialog '0A51206C-1@s' in 32000 ms (Method: INVITE)
Reliably Transmitting (no NAT) to 192.168.92.100:5060:
BYE sip:172.16.99.108:5060 SIP/2.0
Via: SIP/2.0/TCP 192.168.92.99:5060;branch=z9hG4bK6e50b3a3
Route: <sip:630177104@192.168.92.100:5060;lr>,<sip:630177104@192.168.92.100:20612;lr>,<sip:2.228.173.141:20609;lr>
Max-Forwards: 70
From: <sip:3995555599;phone-context=mnc90.mcc222.3gppnetwork.org@mnc90.mcc222.3gppnetwork.org;user=phone>;tag=as55a5b7f7
To: <sip:3995555554@mnc90.mcc222.3gppnetwork.org>;tag=s+1+419d0001+634d3545
Call-ID: 0A51206C-1@s
CSeq: 102 BYE
User-Agent: Asterisk PBX 13.9.1
X-Asterisk-HangupCause: Normal Clearing
X-Asterisk-HangupCauseCode: 16
Content-Length: 0
---
[Jun 21 07:50:10] WARNING[13677][C-00000001]: chan_sip.c:3775 __sip_xmit: sip_xmit of 0x7f0a20006db0 (len 594) to 192.168.92.100:5060 returned -2: Broken pipe