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Grandstream GXP-2000
Cisco 7940G
Cisco 7960
AVAYA 9650
Cisco 524SG
Grandstream GXP-2000 IP Phone
Cisco 7940G IP Phone
Cisco 7960G IP Phone
AVAYA 9650 IP Phone
Cisco 524SG IP Phone
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Release Date
Jun 2006
Dec 2005
Sep 2003
Jun 2009
Oct 2008
Type
IP Phone
IP Phone
IP Phone
IP Phone
VoIP Features
Skype Certified
Average Rating
 4.0 stars
 3.7 stars
 3.5 stars
 n stars
 n stars
Audio
100% Positive
100% Positive
100% Positive
Handling
100% Positive
100% Positive
100% Positive