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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.

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Cisco Systems videos

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Cisco Unified IP Phone 9971, Charcoal, Standard Handset CP-9971-C-K9
00:21 · Published: 01/05/2011
Certis Cisco Security Staff using mobile phone while on duty
00:34 · Published: 01/04/2011
ROGER SWIFT & THE CISCO FLIP PHONE
04:59 · Published: 12/27/2010
Cisco SPA 508G 8-Line IP Phone
00:21 · Published: 01/03/2011
Cisco phone services: On screen keyboard - free download
01:12 · Published: 12/27/2010

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