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GRP2670 - Grandstream Networks
Grandstream 12 Lines, 6 SIP Accounts, 7in touch screen (color ...
GRP261x/GRP262x/GRP263x/GRP2670/GRP2650 Series - User Guide
GRP2670 - Quick Installation Guide - Documentation Center
Grandstream GRP2670 Touchscreen Carrier Grade IP Phone
Grandstream GRP2670 - VoIP phone - 5-way call capability
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