Cisco CP-7811-K9 IP Phone yes Serial data (channel-group) 2 per

Serial data (channel-group) 2 per port E1 unframed G

Speakerphone Full-duplex speakerphone with acoustic echo cancellation

The Cisco IP Phone 8851 is a business-class collaboration endpoint that combines high-fidelity

0A Power Consumption 42W Operating Temperature Operating Temperature: -40C to +75C-40C to +70C (Vented Enclosure Operating)-40C to +60C (Sealed Enclosure Operating)-34C to +75C (Fan or Blower equipped Enclosure Operating)EN 60068-2-1EN 60068-2-2EN 61163 Storage Temperature -40 C to +85 C Operating Altitude Up to 15

Cisco CP-7811-K9 IP Phone yes Serial data (channel-group) 2 per[shortdesc] VoIP phone SIP SRTP Power Adapter Sold Separately [ shortdesc] [properties] Properties CP 7811 K9 Description Cisco IP Phone 7811 Product Family CP7800 Series Product Type IP Phones Hardware Features Ergonomic design The phone offers an easy to use interface and provides a traditional telephony like user experience. Graphical display White backlit, greyscale, 3. 5 396162 pixel based display on the IP Phone 7821, 7841 and 7861. Non backlit,