[OpenSIPS-Users] B2b 'terminate_call' function!

[Jorge Henrique Pinho]

Hi, thank you for your feedback.
User A (caller) sends an Invite to User B (callee). When the Invite arrives to opensips, b2b_init_request is called with 'topology hiding' and the Invite is sent to User B.
Callee reply with a 200OK with sdp content, when this messages arrives to b2b, if something is wrong with the response i need to terminate the call in this phase, and I use the 'terminate_call' function present in the b2b_logic module.
The b2b creates a BYE to user B (callee) but fails to generate a Cancel to user A (caller).

It is possible to end the call at this stage?

Kind regards

Jorge Pinho

From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
Sent: quinta-feira, 28 de Fevereiro de 2013 16:47
To: OpenSIPS users mailling list
Cc: Jorge Henrique Pinho
Subject: Re: [OpenSIPS-Users] B2b 'terminate_call' function!

Hi Jorge,

The "terminate_call" is a C function in the b2b API module. Now, I do not fully understand what you are trying to do - could you detail a bit the state of the involved calls when you do the terminate ?

Regards,


Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com

On 02/28/2013 05:06 PM, Jorge Henrique Pinho wrote:
Hi, I am using b2b module with topology hiding.
I am trying to terminate a call when i receive the 200OK response to an Invite. To accomplish this i am using the 'terminate_call' function defined in b2b_logic module.
The b2b module successfully generates a BYE to user B (callee), but fails to generate a Cancel to user A (caller). Here is the log where it fails to send cancel:

Feb 28 15:01:41 [1466] DBG:b2b_logic:b2bl_parse_key: hash_index = [286]  - local_index= [0]
Feb 28 15:01:41 [1466] DBG:b2b_entities:b2b_parse_key: hash_index = [310]  - local_index= [66]
Feb 28 15:01:41 [1466] DBG:b2b_entities:b2b_search_htable_next_dlg: entering with start=(nil), table=0x2ba1327a39b0, hash=310, label=66
Feb 28 15:01:41 [1466] DBG:b2b_entities:b2b_search_htable_next_dlg: searching  callid 16[0f24ca6601104537]
Feb 28 15:01:41 [1466] DBG:b2b_entities:b2b_search_htable_next_dlg: searching   totag 10[B2B.310.66]
Feb 28 15:01:41 [1466] DBG:b2b_entities:b2b_search_htable_next_dlg: searching fromtag 8[6a18b32d]
Feb 28 15:01:41 [1466] DBG:b2b_entities:b2b_search_htable_next_dlg: Match for server dlg [0x2ba1327a8a20] dlg->uas_tran=[0x2ba1327a8c48]
Feb 28 15:01:41 [1466] DBG:b2b_entities:b2b_send_request: Send request [CANCEL] for entity type [0] for dlg[0x2ba1327a8a20]->[B2B.310.66]
Feb 28 15:01:41 [1466] ERROR:b2b_entities:b2b_send_request: No transaction saved. Cannot send CANCEL

B2b fails to find a transaction to A (caller) and fails to generate a Cancel message to this user.

Is it possible to do what I am trying or is it a bug?

Kind regards

Jorge Pinho






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