Set up a Voxtelesys SIP Trunk on a Grandstream PBX.
Add outbound routes to your Grandstream PBX.
Add extensions to your Grandstream PBX.
Bulk import extensions into your Grandstream PBX.
Add inbound routes to your Grandstream PBX.
Bulk import inbound routes into your Grandstream PBX.
Add/Create a call queue for your Grandstream PBX.
The Grandstream PBX is an on premise phone system. It is a very powerful PBX that allows full configuration for your office's needs. Grandstream also offers web-based and cell phone clients to help your office work remote!