Speakerphone
POLYCOM
SoundStation2 NS
ONLY PSTN
SoundStation2 DS
ONLY PSTN
SoundStation2 EX
ONLY PSTN
VTX-1000
ONLY PSTN
DUO
IP & PSTN
IP5000
ONLY IP
IP6000
ONLY IP
IP7000
ONLY IP
TRIO
ONLY IP
ONLY PSTN
ONLY PSTN
ONLY PSTN
ONLY PSTN
IP & PSTN
ONLY IP
ONLY IP
ONLY IP
ONLY IP