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Grandstream GXP-2000
Cisco 7940G
Cisco 524SG
Polycom CX100
Cisco 524G
Grandstream GXP-2000 IP Phone
Cisco 7940G IP Phone
Cisco 524SG IP Phone
Polycom CX100 IP Phone
Cisco 524G IP Phone
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Release Date
Jun 2006
Dec 2005
Oct 2008
Oct 2008
Jun 2008
Type
IP Phone
IP Phone
IP Phone
IP Phone
IP Phone
VoIP Features
Skype Certified
Skype Certified
Average Rating
 4.0 stars
 3.7 stars
 n stars
 n stars
 n stars
Audio
100% Positive
100% Positive
100% Positive
Handling
100% Positive
100% Positive
100% Positive