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Summary:ASTERISK-04465: Zap channel is not hung up when a DISCONNECT message with cause code 41 is gotten from PRI
Reporter:matti (matti)Labels:
Date Opened:2005-06-23 06:26:01Date Closed:2011-06-07 14:10:30
Priority:MinorRegression?No
Status:Closed/CompleteComponents:Core/General
Versions:Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) chan_zap.c
( 1) diff
Description:Zap channel is not hung up when a DISCONNECT message with cause code 41 is gotten from PRI. However, Zap channel is hung up when a DISCONNECT message with cause code 16 is gotten from PRI.

****** ADDITIONAL INFORMATION ******

< [ 02 01 08 0e 08 02 7e 39 45 08 02 80 a9 ]

< Informational frame:
< SAPI: 00  C/R: 1 EA: 0
<  TEI: 000        EA: 1
< N(S): 004   0: 0
< N(R): 007   P: 0
< 9 bytes of data
< Protocol Discriminator: Q.931 (8)  len=9
< Call Ref: len= 2 (reference 32313/0x7E39) (Originator)
< Message type: DISCONNECT (69)
< [08 02 80 a9]
< Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0   Location: User (0)
<                  Ext: 1  Cause: Temporary failure (41), class = Network Congestion (2) ]


< [ 02 01 0e 14 08 02 7e 47 45 08 02 80 90 ]

< Informational frame:
< SAPI: 00  C/R: 1 EA: 0
<  TEI: 000        EA: 1
< N(S): 007   0: 0
< N(R): 010   P: 0
< 9 bytes of data
< Protocol Discriminator: Q.931 (8)  len=9
< Call Ref: len= 2 (reference 32327/0x7E47) (Originator)
< Message type: DISCONNECT (69)
< [08 02 80 90]
< Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0   Location: User (0)
<                  Ext: 1  Cause: Normal Clearing (16), class = Normal Event (1) ]
Comments:By: Michael Jerris (mikej) 2005-06-23 06:33:02

Is this really on 1.0.2?  If so, please test this again with at least latest 1.0.x, and if that does not work, with head as well.
By: matti (matti) 2005-06-23 06:36:52

When a call is made from another type of EuroISDN switch to a SIP phone and the caller hangs up, the originating switch sends a DISCONNECT message with cause code 41 (Temporary failure). Asterisk does not hang up the call and the SIP phone continues to ring until timeout. I suspect this is because chan_zap.c tries to send a congestion frame that is irrelevant the call not having been answered. I attached a patch that hangs up the Zap channel softly no matter what the cause code is. In Asterisk 1.0.2, some cause codes trigger a congestion or a busy frame, which does not seem to work; by default like in case of cause code 16 the call is softly hung up.
By: Michael Jerris (mikej) 2005-06-23 06:40:15

You didn't answer my question.  1.0.2 is quite old.
By: matti (matti) 2005-06-23 06:43:39

A newer version will be tested but may be only next week, after the midsummer festival...
By: Michael Jerris (mikej) 2005-06-23 06:50:21

Ok.  suspending the issue until you are able to test.  Please re-open when you have your results.  Also, if supplying a patch, please have it in diff -u format, against current head.