Greger,

That would be possible, but the way SER generates the 200OK reply, it would contain the altered "expires=" value. By doing so, the ATA would take that new value and use it, so if the ATA sent the REGISTER with an expires=300 and SER replied with a 200OK and a contact header containing expires=360, the ATA would not send another REGISTER for 360 seconds.

I was fooling around with sip_msg.c and reply.c were I padded the expires with 60 seconds before saving to usrloc and then removing the pad before sending the reply and it works, but I would just feel better by not altering the source code.

I guess I'd just feel more comfortable if SER had some sort of AVP or modparam for the registrar module that did this automagically.

Regards,
Paul

On 6/20/05, Greger V. Teigre <greger@teigre.com> wrote:
It was supposed to be short, but maybe too short. I meant doing the subst on the REGISTER message before save.
g-)
---- Original Message ----
From: Greger V. Teigre
To: Java Rockx ; serusers
Sent: Monday, June 20, 2005 09:01 AM
Subject: Re: [Serusers] Is there an AVP to alter "expires=" in
REGISTERmessages?

> Hi Paul,
> Would it be possible to "do it upside down" ?  ;-) I.e. do a
> subst("/^Expires:(.*)[0-9]$/ Expires: yourvalue+60/gi");
> g-)
>
> ---- Original Message ----
> From: Java Rockx
> To: serusers
> Sent: Sunday, June 19, 2005 04:28 PM
> Subject: [Serusers] Is there an AVP to alter "expires=" in REGISTER
> messages?
>
>> Hi All.
>>
>> We've got some ATAs that don't quite re-REGISTER in a timely fashion
>> and therefore SER expires the usrloc record a few seconds before the
>> ATA sends another REGISTER message.
>>
>> Is there an AVP or something to add, for example, 60 seconds to the
>> "expires=" value in the REGISTER message prior to calling save()? By
>> doing so, these "broken" ATAs would re-REGISTER before SER removes
>> the usrloc record from cache.
>>
>> Regards,
>> Paul
>>
>>
>>
>>
>> _______________________________________________
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>> serusers@lists.iptel.org
>> http://mail.iptel.org/mailman/listinfo/serusers
>
>
>
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