Sorry for a touch of a cross-post (I posted a similar quetion to serdev), but I don't know if I should have posted to ser-users instead in the first place. Again, my apologies.
I have previously ready posts about the CPL proxy timeout value being ignored because of a lack of ability in the tm module. After reading some posts about being able to set dynamic invite timers via avp, it looks like tm should handle this type of thing fine. (Again forgive me, I have only started sifting through the SER code this week--trying to wrap my head around it all). Since tm can support dynamic timers, is there a way to modify the cpl handling code to set the callee invite timer to the value in the CPL proxy timeout?
I ask because we are currently routing all calls from endpoints through ser, to one of several asterisk boxes to handle the dialplan (ring phone for n seconds then do x type stuff), and then back out to ser. Since asterisk isn't a sip proxy, you get all kinds of fun problems when a call is routed in such a way that one leg is on one asterisk box, and the other on another and then a transfer takes place. We would love to be able to handle all of our dialplan stuff in CPL, but have to be able to do things like "Call my phone for 10 seconds, then ring these 3 phones for 10 seconds if I don't answer", etc. It looks like CPL should handle this kind of thing perfectly--except setting the timeout for a call to roll to noanswer based on destination. I can't be setting these rules directly in the ser.cfg because I have lots of endpoints, and they can change how long their phone rings etc. through a web interface.
Is this type of behaviour already supported in some other way? Is it possible to relatively easily add the proxy timeout support to CPL by having it set the timeout using AVP? (btw, what does that acronym stand for?) Are there not many people that would benefit from this type of modification (i.e. do I need to brush up on my C skills :-) )? Any info would be greatly appreciated. Thanks!
Terry,
I was considering adding variable timer support in CPL once the tm /ser implementation of variable timers gets to a better version - I have some performance reserve regarding the current one. Also I could just add this feature and let the admin to decide to use it or not ;-)
bogdan
Terry Wilson wrote:
Sorry for a touch of a cross-post (I posted a similar quetion to serdev), but I don't know if I should have posted to ser-users instead in the first place. Again, my apologies.
I have previously ready posts about the CPL proxy timeout value being ignored because of a lack of ability in the tm module. After reading some posts about being able to set dynamic invite timers via avp, it looks like tm should handle this type of thing fine. (Again forgive me, I have only started sifting through the SER code this week--trying to wrap my head around it all). Since tm can support dynamic timers, is there a way to modify the cpl handling code to set the callee invite timer to the value in the CPL proxy timeout?
I ask because we are currently routing all calls from endpoints through ser, to one of several asterisk boxes to handle the dialplan (ring phone for n seconds then do x type stuff), and then back out to ser. Since asterisk isn't a sip proxy, you get all kinds of fun problems when a call is routed in such a way that one leg is on one asterisk box, and the other on another and then a transfer takes place. We would love to be able to handle all of our dialplan stuff in CPL, but have to be able to do things like "Call my phone for 10 seconds, then ring these 3 phones for 10 seconds if I don't answer", etc. It looks like CPL should handle this kind of thing perfectly--except setting the timeout for a call to roll to noanswer based on destination. I can't be setting these rules directly in the ser.cfg because I have lots of endpoints, and they can change how long their phone rings etc. through a web interface.
Is this type of behaviour already supported in some other way? Is it possible to relatively easily add the proxy timeout support to CPL by having it set the timeout using AVP? (btw, what does that acronym stand for?) Are there not many people that would benefit from this type of modification (i.e. do I need to brush up on my C skills :-) )? Any info would be greatly appreciated. Thanks!
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
On 11-02 16:32, Bogdan-Andrei IANCU wrote:
Terry,
I was considering adding variable timer support in CPL once the tm /ser implementation of variable timers gets to a better version - I have some performance reserve regarding the current one. Also I could just add this feature and let the admin to decide to use it or not ;-)
I did some observations on a live system and performance penalty for using variable timers with current implementation was around 10% when variable timers were used by almost all subscribers. So it is noticeable, but marginal, the administrator can always disable it if in doubt.
Jan.
That seems like an acceptable margin for the functionality. Has anyone done any stress testing of SER where most of the calls are going through the CPL module? Anyone know how much of a performance hit there would be? On a good server, how many calls do you think SER could handle doing variable timers and CPL?
On Fri, 11 Feb 2005 23:50:49 +0100, Jan Janak jan@iptel.org wrote:
On 11-02 16:32, Bogdan-Andrei IANCU wrote:
Terry,
I was considering adding variable timer support in CPL once the tm /ser implementation of variable timers gets to a better version - I have some performance reserve regarding the current one. Also I could just add this feature and let the admin to decide to use it or not ;-)
I did some observations on a live system and performance penalty for using variable timers with current implementation was around 10% when variable timers were used by almost all subscribers. So it is noticeable, but marginal, the administrator can always disable it if in doubt.
Jan.
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Bogdan-Andrei IANCU -
Jan Janak -
Terry Wilson