VoIP Glossary

I

IP: Internet Protocol

IP-PBX: short for Internet Protocol - Private Branch eXchange is VoIP based telephone exchange used by companies. In business telephone systems, IP-PBX can be purchased or hosted by VoIP providers, unlike traditional PBX provided by CLEC/ILEC carriers.

IP telephony: a technology that allows you to make and receive telephone calls within LAN. See VoIP.

ISDN: short for Integrated Services Digital Network.

ISP: Internet Service Provider

Use the below box (Google custom site search engine) to quickly find other VoIP glossary terms.

You may be interested in the following related topics:

How VoIP Works

Back to VoIP Glossary

Return to VoIP Phone Tips Home