Change VOIP provider expire

[flag2000]

Hello,

I use VOIP provider (sip settings in Extensions management on one specific extension)

I have this information on "contact" of the register packet
Contact: "Fournisseur IP" <sip:06825050001@213.181.38.157:5060>;expires=36 00

I want to change Expire timeout but I don't find where.

Could you help me please ?

Thank you,

Arnaud

[flag2000]

I find it on Telephony settings --> Sip settings
(sip timers)