[Serusers] Changing 'expires' value in response to REGISTER

[Andres]

Kanakatti Mahesh Subramanya wrote:

> This works successfully with the Snoms.
>
> However, it also successfully breaks Sipuras (of which we have quite a 
> few too)
>
> And, rfc3261 never actually sez. that teh UAC must accept the value I 
> send back (weird...)
>
> Any other ideas??
>
On Sipura these 2 Values control what you want:

Reg Min Expires:
Minimum registration expiration time allowed
from the proxy in the Expires header or as a
Contact header parameter. If proxy returns
something less this value, then the minimum
value is used.

Reg Max Expires:
Maximum registration expiration time allowed
from the proxy in the Min-Expires header. If
value is larger than this, then the maximum
value is used

Just set the Reg Min Expires value to say 1 second and it should 
therefore accept the value of 30 in the Expires Header.

Cheers.


> cheers
>
> Andres wrote:
>
>> Kanakatti Mahesh Subramanya wrote:
>>
>>> And the beat goes on...
>>>
>>> I 've got a bunch of Snom's that have a minimum register interval of 
>>> 1 minute.
>>>
>>> I *know* that I can get them to register every 30 seconds if I set 
>>> the 'expires' value in the Contact header of the '200 OK' response 
>>> to the REGISTER request appropriately (whew)
>>> e.g., instead of returning
>>> Contact: <sip:jake.foobaz at 1.2.3.4:49154>;expires=60
>>> I return
>>> Contact: <sip:jake.foobaz at 1.2.3.4:49154>;expires=30
>>>
>>> The question is - how do I change the 'expires' value?
>>
>>
>>
>> How about using a global parameter like:
>>
>> 1.3.3. max_expires (integer)
>>
>>   The maximum expires value of a Contact, values higher than
>>   this maximum will be automatically set to the maximum. Value 0
>>   disables the checking.
>>
>>   Default value is 0.
>>
>>   Example 1-3. Set max_expires parameter
>> ...
>> modparam("registrar", "max_expires", 120)
>>
>>
>>>
>>> append_to_reply() isn't relevant - i don't want another header
>>> subst() on the request's 'Expires' header isn't useful since 
>>> build_contact() seems to extract it's values from the original 
>>> request.  Any changes I made to it seem to be ignored
>>>
>>> Any ideas?
>>>
>>> cheers
>>>
>>> ------------------------------------------------------------------------ 
>>>
>>>
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>>> Serusers mailing list
>>> serusers at lists.iptel.org
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>>>  
>>>
>>
>>


-- 
Andres
Network Admin
http://www.telesip.net