How to re-register trunk

I have a Trixbox with Asterisk and Free PBX

I’m having problems with a trunk not wanting to re-register. My provider told me to set it to register every 90 sec. Where can I do that?

I have looked but can find a place to do that.

oh never mind… i missed the fact that you were on trixbox and not freePBX proper.

look in tools|Asterisk SIP Settings: scroll down to registration settings

I can’t find tools|Asterisk SIP Settings