Devert Calls from Exten to Mobiles by using SIP PBX

Hi, please help to solving the issue in SIP PBX

i have developing SIP PBX by using FXS and FXO Technologies, for that i want to develop a feature like, if i call one of the extention, if that person not available in that particular extention after four rings that call has to be devirted to his mobil are Land line.

So for that how can i solve this problem, what are the step i have to take and put in extentions.conf

Regards
Amahade/Satya

Hi Amahade,

Which software are you using - Asterisk or SIPx PBX?

You've posted this in the VoIP User IAX services forum but we can move it from here to the right place when we know what it's about

Dean

We are using Asterisk version 1.0.9.

i have developing IP PBX by using FXS and FXO Technologies, for that i want to develop a feature like, if i call one of the extention, if that person not available in that particular extention after four rings that call has to be diverted to his mobile are Land line.

please do needful regarding the above information.

Regards
Mahadev/satya