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Poly VVX 150 2-line Desktop Business IP Phone (openSIP, dual 10/100 Et – Global Communication
IT Services: VoIP: IP Phone 2004
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager - Cisco IP Phone Hardware [Cisco IP Phone 7800 Series] - Cisco
Cisco SPA504G 4-Line IP Phone with 2-Port Switch, PoE and LCD Display | eBay
Cisco SPA504G 4 Line IP Phone with Display, PoE and PC Port + AC Power | eBay
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Cisco Unified IP Phone Model 7905G and 7912G Administration Guide for Cisco Unified CallManager Release 4.2 and later - Setting Up the Cisco Unified IP Phone [Cisco Unified IP Phone 7900 Series] - Cisco Systems
Using desktop IP Phone as a bridge between the local network and your PC – NUACOM Help Center
Cisco 7960 G IP Phone - CP-7960G - 5 Year Warranty