Avaya submitted two configurations for our test of IP PBX security: A no-frills, out-of-the-box Avaya IP telephony deployment with no extra-priced security options; and a maximum-security alternative ...

Voice over Internet protocol and public branch exchange systems -- VoIP and PBX, respectively -- are two ways of achieving the same end goal: to make and receive phone calls. Traditional PBX systems ...

Centrex viewed as expensive over owning your own PBX or IP PBX, but the services are still very attractive for small-to-midsize companies. Centrex may have lost the debate to PBXs but the service ...