[OpenSIPS-Users] Question regarding expire time of mid-register

[Callum Guy]

You should try setting the min expires value, the documentation states that
any values lower than this will be overridden with the minimum you define!

https://opensips.org/html/docs/modules/3.0.x/registrar.html#param_min_expires

On Wed, 17 Mar 2021 at 06:43, Jeffrey Zhao <chunyong.zhao at qq.com> wrote:

> Dear Team
>
> For legacy Cisco IP phones, the SIP registration expiration time must be
> set to less than 120 seconds, and there is no way to control the timer on
> phone end.
> It must be controlled on the SIP registrar end(Expires value set to 120 in
> registration reply SIP message).
>
> I am not sure whether there is a way in OpenSIPS script to update the
> 'Expires' header(base on user agent string, if Cisco Phone, then Expires:
> 120) in the onreply_route.
>
> Which parameter is writtable to achieve the target?
>
> Thank you so much!
>
>
> REGISTER sip:test.com SIP/2.0
> Via: SIP/2.0/UDP 10.167.6.60:5060;branch=z9hG4bK3593290796
> From: "Ooi, Liyong" <sip:3827 at test.com>;tag=30622762
> To: "Ooi, Liyong" <sip:3827 at test.com>
> Call-ID: 0_2497201195 at 10.167.6.60
> CSeq: 1 REGISTER
> Contact: <sip:3827 at 10.167.6.60:5060>
> Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER,
> SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
> Max-Forwards: 70
> User-Agent: Cisco CP-7975
> Expires: 900
> Allow-Events: talk,hold,conference,refer,check-sync
> Content-Length: 0
>
>
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> Users at lists.opensips.org
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>

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