[Serusers] Dynamic Invite Timer w/AVPOPS

Marian Dumitru marian.dumitru at voice-sistem.ro
Sun Dec 5 16:06:47 CET 2004


Hi Paul,

you can optimized a little bit by forcing the avp value directly as 
number (to avoid conversions on runtime, for each invite).

replace
	avp_write("45", "inv_timeout");
with
	avp_write("i:45", "inv_timeout");

Best regards,
Marian

Java Rockx wrote:
> Marian,
> 
> Thanks for the patch - it fixed my dynamic timer problem.
> 
> Regards,
> Paul
> 
> --- Marian Dumitru <marian.dumitru at voice-sistem.ro> wrote:
> 
> 
>>Hi Paul,
>>
>>The script looks ok. The problem is in other part; it took my some time 
>>to trace it - there is a bug in TM in setting the "fr_inv_timer_avp" 
>>parameter. Because of this, the AVP was not found and default value was 
>>applied for timeout.
>>
>>Please find attach a patch to fix the problem.
>>
>>Best regards,
>>Marian
>>
>>Java Rockx wrote:
>>
>>>Thanks, however I must be doing something wrong because the avp_write() doesn't seem to have
>>
>>any
>>
>>>effect on the INVITE timer timeout.
>>>
>>>My ser.cfg looks like this:
>>>
>>># ------------- tm parameters
>>>modparam("tm", "fr_timer", 15)
>>>modparam("tm", "fr_inv_timer", 22)
>>>modparam("tm", "wt_timer", 5)
>>>modparam("tm", "fr_inv_timer_avp", "inv_timeout")
>>>
>>>route {
>>>
>>>        # sanity checks, record route, alias lookup, etc, etc
>>>
>>>        if (!lookup("location")) {
>>>
>>>                if (uri=~"^sip:[0-9]{10}@") {
>>>                                                                                              
>>
>>   
>>
>>>             
>>>                        # Send to PSTN Gateway
>>>                        avp_write("45", "inv_timeout");
>>>                        route(3);
>>>                        break;
>>>                }
>>>  
>>>                sl_send_reply("404", "User Not Found");
>>>                break;
>>>        };
>>>
>>>        # normal SIP->SIP routing with default fr_inv_timer
>>>        # set to 22 seconds with mod_param() above
>>>        route(2);
>>>}
>>>
>>>Shouldn't this do the trick?
>>>
>>>Regards,
>>>Paul
>>>
>>>
>>>--- Marian Dumitru <marian.dumitru at voice-sistem.ro> wrote:
>>>
>>>
>>>
>>>>Hi Paul,
>>>>
>>>>you can control final_response_timer and final_response_invite_timer via 
>>>> avps. Set in TM fr_inv_avp / fr_inv_timer_avp parameters with some AVP 
>>>>string names and use AVPOPS to give values to these AVPS:
>>>>
>>>>modparam("tm","fr_inv_timer_avp","inv_timeout")
>>>>
>>>>....
>>>>avp_write("20","inv_timeout"); # set timeout to 20 sec
>>>>t_relay();
>>>>.....
>>>>
>>>>Best regards,
>>>>Marian
>>>>
>>>>Java Rockx wrote:
>>>>
>>>>
>>>>>Hi All.
>>>>>
>>>>>I thought I read something a while ago about using avpops to dymanically change the INVITE
>>>>
>>>>timer -
>>>>
>>>>
>>>>>but I can't seem to find that thread.
>>>>>
>>>>>Can anyone tell me if this is possible?
>>>>>
>>>>>I'd like to have a shorter INVITE timer for SIP->SIP calls and a longer INVITE timer for
>>>>
>>>>SIP->PSTN
>>>>
>>>>
>>>>>calls. We see some 408 replies because a SIP phone is dialing a cell phone and get transfered
>>>>
>>>>to
>>>>
>>>>
>>>>>the voicemail of the cell phone user, but to prevent the 408 due to a slow voicemail system
>>
>>we
>>
>>>>>have our INVITE timer currently set at 40 seconds which is rather annoying for SIP->SIP
>>
>>calls.
>>
>>>>>I'm using -dev-21
>>>>>
>>>>>Regards,
>>>>>Paul
>>>>>
>>>>>
>>>>>		
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>>>>
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>>>
>>>
>>>
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>>
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>>http://www.voice-sistem.ro
>>
>>>Index: modules/tm/t_funcs.c
>>
>>===================================================================
>>RCS file: /cvsroot/ser/sip_router/modules/tm/t_funcs.c,v
>>retrieving revision 1.172
>>diff -u -r1.172 t_funcs.c
>>--- modules/tm/t_funcs.c	1 Nov 2004 14:09:08 -0000	1.172
>>+++ modules/tm/t_funcs.c	3 Dec 2004 18:49:14 -0000
>>@@ -340,7 +340,7 @@
>> 	fr_inv_timer_avp.s = &fr_inv_timer_param;
>> 
>> 	fr_timer_param.len = strlen(fr_timer_param.s);
>>-	fr_inv_timer_param.len = strlen(fr_timer_param.s);
>>+	fr_inv_timer_param.len = strlen(fr_inv_timer_param.s);
>> }
>> 
>> 
>>
> 
> 
> 
> 
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