What is Voice over Internet Protocol (VoIP)? Is a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks.

« News

MULTIMEDIA

PBX videos

171º to 175º video

Birns Business Phone System PBX
01:01 · Published: 08/08/2011
Top 5 PBX Phones & Systems with price $999-1000
01:28 · Published: 08/08/2011
PBX Presents
01:40 · Published: 08/05/2011
Top 5 PBX Phones & Systems with price $1363-1500
01:31 · Published: 08/02/2011
Top 5 PBX Phones & Systems with price $1299-1361
01:23 · Published: 08/02/2011

Next videos »« Previous videos

PBX videos

Birns Business Phone System PBX

Top 5 PBX Phones & Systems with price $999-1000

PBX Presents

Top 5 PBX Phones & Systems with price $1363-1500

Top 5 PBX Phones & Systems with price $1299-1361