We are offering soundpoint ip 670-sip desktop phone. Feature keys4 context-sensitive soft keys26 dedicated hard keys6 line keys with bi-color (redgreen) led8 feature keys6 displaymenu navigation keys2 volume control keysilluminated mute keyilluminated headset keyilluminated hands-free speakerphone keydedicated hold keyheadset and hearing aid compatibilitydedicated rj-9 headset portamplified headsets are recommendedcompliant with ada section 508recommendations: subpart b 1194.23 (all)hearing aid compatible (hac) handsetfor magnetic coupling to approved hachearing aidscompatibility with commercially-availabletty adapter equipmentaudio featurespolycom hd voice technology deliverslife-like voice quality for each audiopaththe handset, the hands-freespeakerphone, and the headset1full-duplex hands-free speakerphonetype 1 compliant with ieee 1329 fullduplexstandardsfrequency response150hz - 7khzfor handset, headset1and hands-freespeakerphone modescodecs: g.722 (wideband), g.711 a, g.729a (annex b), and ilbcindividual volume settings with visualfeedback for each audio pathvoice activity detectioncomfort noise filldtmf tone generationdtmf eventrtppayloadlow-delay audio packet transmissionadaptive jitter bufferspacket loss concealmentacoustic echo cancellationbackground noise suppressioncall handling features2shared callbridged line appearanceflexible line appearance (one or moreline keys can be assigned for eachlineextension)busy lamp field (blf)distinctive incoming calltreatmentcall waitingcall timercall transfer, hold, divert (forward), pickupcalled, calling, connectedpartyinformationlocal three-way conferencingone-touch speed dial, redialcall waitingremote missed call notificationintercomautomatic off-hook call placementdo not disturb function