Trixbox Voicemail Issue

Hello all,
I am integrating trixbox with cisco call mananger express for voicemail feature.
Voicemail is working fine internally (extensions to extensions ).
But if anyone calling externally it is not going to voicemail after ringing.
It is giving a message…" The number is not in service "
Please guide…as i am totally new to this platform.
Further inputs will be provided on request.

I’m not sure who’s going to be able to give you advice on Trixbox. It’s an extremely old and poorly implemented fork of Asterisk and of FreePBX. If you want a FreePBX interface on a supported platform, see the FreePBX distro from Schmoozecom -


It is also abandonware. Fonality don’t support and they have even closed down their peer support forum.