I have an asterisk box configured to perform media translation (TDM <->
SIP). With this configuration, calls are essentially only passing
through the asterisk box. Thus, I would think that a disconnect request
should be received from one end of the call (SIP or TDM) into the
asterisk box as an end of the call.
However, periodically, I've been getting reports from users of being
disconnected in mid-conversation. I've checked the system's logs for
any indication of problems and they all appear clean. Eventually, I
enabled both PRI and SIP debugging in an effort to track down the
location of these disconnects. At this time it appears that the
asterisk is initiating a disconnect of both the PRI and the SIP channel
(see the log snippet below). However, there doesn't appear to be any
indication of why the asterisk is deciding to terminate the calls.
I've included a entry from the logs just prior to and following the
hangup block to provide some reference, as you can see the logs show no
events for about 16 seconds prior to the hangup. The IP addresses and
telephone numbers in the provided log snippet have been altered, but
nothing more.
Any ideas on how to locate the cause or initiator of the disconnect
would be most appreciated.
Sep 8 08:50:39 VERBOSE[14047] logger.c: Destroying call
'[EMAIL PROTECTED]'
Sep 8 08:50:55 VERBOSE[31079] logger.c: NEW_HANGUP DEBUG: Calling
q931_hangup, ourstate Active, peerstate Connect Request
Sep 8 08:50:55 VERBOSE[31079] logger.c: > Protocol Discriminator: Q.931
(8) len=9
Sep 8 08:50:55 VERBOSE[31079] logger.c: > Call Ref: len= 2 (reference
529/0x211) (Originator)
Sep 8 08:50:55 VERBOSE[31079] logger.c: > Message type: DISCONNECT (69)
Sep 8 08:50:55 VERBOSE[31079] logger.c: > [Sep 8 08:50:55
VERBOSE[31079] logger.c: > [08Sep 8 08:50:55 VERBOSE[31079] logger.c: >
[08 02Sep 8 08:50:55 VERBOSE[31079] logger.c: > [08 02 81Sep 8
08:50:55 VERBO
SE[31079] logger.c: > [08 02 81 90Sep 8 08:50:55 VERBOSE[31079]
logger.c: > [08 02 81 90]
Sep 8 08:50:55 VERBOSE[31079] logger.c: > Cause (len= 4) [ Ext: 1
Coding: CCITT (ITU) standard (0) 0: 0 Location: Private network
serving the local user (1)
Sep 8 08:50:55 VERBOSE[31079] logger.c: > Ext: 1
Cause: Unknown (16), class = Normal Event (1) ]
Sep 8 08:50:55 VERBOSE[31079] logger.c: -- Hungup 'Zap/1-1'
Sep 8 08:50:55 VERBOSE[31079] logger.c: == Spawn extension (outbound,
15551212121, 1) exited non-zero on 'SIP/webacd.net-081ac408'
Sep 8 08:50:55 VERBOSE[31079] logger.c: set_destination: Parsing
<sip:[EMAIL PROTECTED]> for address/port to send to
Sep 8 08:50:55 VERBOSE[31079] logger.c: set_destination: set
destination to 1.2.3.4, port 5060
Sep 8 08:50:55 VERBOSE[31079] logger.c: Reliably Transmitting (no NAT)
to 1.2.3.4:5060:
BYE sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP 4.3.2.1:5060;branch=z9hG4bK60a2b672;rport
From: <sip:[EMAIL PROTECTED]:5060>;tag=as40f443a0
To: <sip:[EMAIL PROTECTED]>;tag=9961
Contact: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 102 BYE
User-Agent: Asterisk
Max-Forwards: 70
Content-Length: 0
---
Sep 8 08:50:55 VERBOSE[14047] logger.c:
<-- SIP read from 1.2.3.4:5060:
SIP/2.0 200 OK
To: <sip:[EMAIL PROTECTED]>;tag=9961
From: <sip:[EMAIL PROTECTED]:5060>;tag=as40f443a0
Via: SIP/2.0/UDP 4.3.2.1:5060;branch=z9hG4bK60a2b672;rport
CSeq: 102 BYE
Call-ID: [EMAIL PROTECTED]
Contact: <sip:[EMAIL PROTECTED]>
User-Agent: ININ/2.400.10.10609
ININCrn: 1001654588
Content-Length: 0
Sep 8 08:50:55 VERBOSE[14047] logger.c: --- (10 headers 0 lines)Sep 8
08:50:55 VERBOSE[14047] logger.c: --- (10 headers 0 lines)---
Sep 8 08:50:55 VERBOSE[14047] logger.c: Destroying call
'[EMAIL PROTECTED]'
Sep 8 08:50:55 VERBOSE[14054] logger.c: < Protocol Discriminator: Q.931
(8) len=5
Sep 8 08:50:55 VERBOSE[14054] logger.c: < Call Ref: len= 2 (reference
529/0x211) (Terminator)
Sep 8 08:50:55 VERBOSE[14054] logger.c: < Message type: RELEASE (77)
Sep 8 08:50:55 VERBOSE[14054] logger.c: NEW_HANGUP DEBUG: Calling
q931_hangup, ourstate Null, peerstate Release Request
Sep 8 08:50:55 VERBOSE[14054] logger.c: > Protocol Discriminator: Q.931
(8) len=9
Sep 8 08:50:55 VERBOSE[14054] logger.c: > Call Ref: len= 2 (reference
529/0x211) (Originator)
Sep 8 08:50:55 VERBOSE[14054] logger.c: > Message type: RELEASE
COMPLETE (90)
Sep 8 08:50:55 VERBOSE[14054] logger.c: > [Sep 8 08:50:55
VERBOSE[14054] logger.c: > [08Sep 8 08:50:55 VERBOSE[14054] logger.c: >
[08 02Sep 8 08:50:55 VERBOSE[14054] logger.c: > [08 02 81Sep 8
08:50:55 VERBO
SE[14054] logger.c: > [08 02 81 90Sep 8 08:50:55 VERBOSE[14054]
logger.c: > [08 02 81 90]
Sep 8 08:50:55 VERBOSE[14054] logger.c: > Cause (len= 4) [ Ext: 1
Coding: CCITT (ITU) standard (0) 0: 0 Location: Private network
serving the local user (1)
Sep 8 08:50:55 VERBOSE[14054] logger.c: > Ext: 1
Cause: Unknown (16), class = Normal Event (1) ]
Sep 8 08:50:55 VERBOSE[14054] logger.c: NEW_HANGUP DEBUG: Calling
q931_hangup, ourstate Null, peerstate Null
Sep 8 08:50:55 VERBOSE[14054] logger.c: NEW_HANGUP DEBUG: Destroying
the call, ourstate Null, peerstate Null
Sep 8 08:51:39 VERBOSE[14047] logger.c: 12 headers, 0 lines
--
Jamin W. Collins
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