Summary:	ASTERISK-09784: Calls get disconnected during a conversation
Reporter:	Bastian Marmetschke (basty)	Labels:
Date Opened:	2007-06-29 01:38:22	Date Closed:	2011-06-07 14:02:52
Priority:	Major	Regression?	No
Status:	Closed/Complete	Components:	Channels/chan_sip/General
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:	( 0) sip-debug ( 1) sip-debug.txt
Description:	We have several Snom Hardphones on Asterisk 1.2.19, sometimes during a call (external/internal) it breaks up with following Warning in the Asterisk CLI: WARNING[18252] chan_sip.c: Maximum retries exceeded on transmission 3d2cca1cf1b3-c6cbjoxi8rvb@snom320-00041324A7FD for seqno 2 (Critical Response) ****** ADDITIONAL INFORMATION ****** The Problem seems to exist after Version 1.2.13. I allready tried to fix the issue changing "res = transmit_response_with_sdp(p, "200 OK", &p->initreq, 2);" to "res = transmit_response_with_sdp(p, "200 OK", &p->initreq, 1);" (in the chan_sip.c). But there is still the same behavior.
Comments:	By: Joshua C. Colp (jcolp) 2007-06-29 07:05:12 A sip debug is required before we can look at this. By: Bastian Marmetschke (basty) 2007-07-02 06:36:42 SIP-Debug attached! By: Joshua C. Colp (jcolp) 2007-07-05 08:39:35 It looks like chan_sip is not processing the 200 OK in response to a NOTIFY... basically a blind transfer happened and the NOTIFY is sent out to say "hey everything went fine"... the Snom sends back a 200 OK to acknowledge receipt of the NOTIFY and chan_sip ignores it. Can you turn on debug in logger.conf, do a set debug 9 on the console, and recreate it? It should say why chan_sip is ignoring the packet. By: Bastian Marmetschke (basty) 2007-07-18 02:37:33 I will try it again, problem is - that this Problem happends during a conversation. No blindtransfer was used. The phone rings and suddenly the call breaks up. By: Bastian Marmetschke (basty) 2007-07-18 06:22:07 Okay - new "Sip-Debug" ist uploaded! :) By: Jared Smith (jsmith) 2007-07-18 07:33:35 Could you please upload a SIP debug that actually shows the SIP traffic?  Without seeing the SIP messaging itself, it's going to be difficult to debug. By: mike240se (mike240se) 2007-07-23 14:33:49 I am having the same issue.  I am also using a snom phone too.  Could this be a snom phone issue?  What firmware version are you using? By: Bastian Marmetschke (basty) 2007-07-24 01:41:26 I dont think that this is a Snom Firmware issue. I am using FW from 6.2.3 up to 7.X.X with the same Problem. By: Grzegorz Garlewicz (garlew) 2007-08-01 15:31:06 Seems to be related to ASTERISK-5175215 and similar bugs - asterisk not being able to distinguish between different simultaneous sip transactions. By: Jason Parker (jparker) 2007-08-29 16:34:03 Is this also an issue with 1.4? By: Joshua C. Colp (jcolp) 2007-10-29 12:09:15 Suspended due to lack of response. If this is still an issue feel free to reopen with the needed information.