Summary:	ASTERISK-09494: Calls are terminated by the network when answered by IVR
Reporter:	markhnz (markhnz)	Labels:
Date Opened:	2007-05-22 18:44:01	Date Closed:	2011-06-07 14:02:37
Priority:	Major	Regression?	No
Status:	Closed/Complete	Components:	Core/General
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:
Description:	When a call is placed to Asterisk and is answered by the IVR the Q931 responses are different and after 24 seconds the call is terminated. In the case of a call to a DDI the call proceeds normally.  The difference in Q931 debug appears to be that in the case of a DDI call an ALERTING message is sent to the network. ****** ADDITIONAL INFORMATION ****** Call answered by IVR May 22 16:22:10 VERBOSE[21458] logger.c: < Message type: SETUP (5) May 22 16:22:10 VERBOSE[21458] logger.c: > Message type: CALL PROCEEDING (2) May 22 16:22:10 VERBOSE[26789] logger.c: > Message type: CONNECT (7) May 22 16:22:10 VERBOSE[21458] logger.c: < Message type: CONNECT ACKNOWLEDGE (15) May 22 16:22:34 VERBOSE[21458] logger.c: < Message type: DISCONNECT (69) May 22 16:22:34 VERBOSE[26789] logger.c: > Message type: RELEASE (77) May 22 16:22:34 VERBOSE[21458] logger.c: < Message type: RELEASE COMPLETE (90) Call answered by DDI SIP phone May 22 16:19:06 VERBOSE[21458] logger.c: < Message type: SETUP (5) May 22 16:19:06 VERBOSE[21458] logger.c: > Message type: CALL PROCEEDING (2) May 22 16:19:07 VERBOSE[26437] logger.c: > Message type: ALERTING (1) May 22 16:19:10 VERBOSE[26437] logger.c: > Message type: CONNECT (7) May 22 16:19:10 VERBOSE[21458] logger.c: < Message type: CONNECT ACKNOWLEDGE (15) May 22 16:20:37 VERBOSE[21458] logger.c: < Message type: DISCONNECT (69) May 22 16:20:37 VERBOSE[26437] logger.c: > Message type: RELEASE (77) May 22 16:20:37 VERBOSE[21458] logger.c: < Message type: RELEASE COMPLETE (90)
Comments:	By: James Texter III (jtexter3) 2007-05-22 20:55:33 ALERTING is an optional message in Q931, so it shouldn't matter, though it's possible.  You can test this by adding a call to the Ringing dialplan app before you call Answer. By: markhnz (markhnz) 2007-05-22 21:44:21 jtexter: thanks for that suggestion: adding "exten => s,n,Ringing()" and hence sending ALERTING does prevent the DISCONNECT from network after 24 seconds - more testing will reveal if this fixes the issue properly.   The situation we are seeing this occur is as follows (asterisk=ast_pabx) :- pabx->carrier1->carrier2-ast_pabx it does not occur in these situations:- cell->carrier1->carrier2->ast_pbx   (this one is interesting, but we know that the switch from cell->carrier1 is  different than the switch in the pabx->carrier1->carrier2-ast_pabx case.) cellpm->carrier3->carrier2->ast_pabx fixed->carrier2->ast_pabx So it appears it is a "feature" particular to the pabx->fixed_network_switch scenario. By: Jason Parker (jparker) 2007-05-23 12:08:54 I'm closing this then, since it isn't an issue with asterisk/libpri.