Use Only Voice Mail on Asterisk

We’re using a softswitch that don’t implemet unified message, so it have a poor voice mail solution.

I like to use asterisk voicemail in my actual solution of softswitch.
I Configure a route 8888 that when an user dial this number, softswitch send call to softswitch. But i receive a sip error code 407.

How i can solve this provlem ??

Thanks.

Fred

post the relevant parts of your sip.conf (you are using sip, yes?) as well as the relevant part of your extensions.conf, and a sip debug of what happens when you try to make the call…