How is it setup? If it is setup as an extension that they want to forward then they can do this with the NEC DSX Series With a PRI. The only thing is you have to have all phone numbers start with the same Nxx.
Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.