Thomas Leseney wrote:
> Hi Steve,
>
> Yes this is a correct behavior. The contact expires parameter indicates
> how long the UA would like the registration to be valid.
>
> The registrar takes this value as a suggestion but it may have a local
> policy and is allowed to either reduce this value (the selected value is
> indicated in the 200 response) or reject the registration if the
> suggested value is too short.
>
> It seems your registrar is configured with a maximum expiration value of
> 60.
Setting a very small value like this is a trick that a registrar, or an
SBC in front of a registrar, may do in order to force frequent
reregistrations that can keep a path open through a NAT or FW.
You might want to explore configuration options that minimize this if it
isn't needed in your case.
Paul
> Regards,
>
> Thomas
>
>
>
> how long the UA would
> like the binding to be valid
>
> how long the UA would
> like the binding to be valid
>
>
> Vick, Steven wrote:
>
>> Hi,
>>
>> In 3261, it states
>>
>> "If the field value has an "expires" timer, that value MUST be taken as
>> the requested expiration."
>>
>> But, further on, it states the proxy MAY choose an expiration less than
>> the requested expiration interval.
>>
>> I am trying to resolve a problem, and I am hoping you can help.
>>
>> My gateway sends an expiration timer of 900 seconds, and I do see it in
>> the following the contact info. But the proxy ALWAYS changes it to 60
>> seconds. Is this correct (legal)?
>>
>> Thanks, and by the way, this has been an excellent source of information
>> for me. I appreciate everything you do to maintain this forum. As a
>> rookie, it's helped me tremendously. Cheers!
>>
>> Steve
>>
>>
>>
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
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>>
>
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