Cisco 7821 User Manual

CHAPTER 7
Accessories
• Supported Accessories, on page 117
• Headsets, on page 117
Supported Accessories
The Cisco IP Phone 7800 Series supports both Cisco and third-party accessories.
In the following table, an X indicates support for an accessory by a particular phone model and a dash (-)
indicates no support.
Table 9: Accessory Support for the Cisco IP Phone 7800 Series
Cisco IP Phone
7861
Cisco IP Phone
7841
Cisco IP Phone
7821
Cisco IP Phone
7811
TypeAccessory
Third-Party Accessories
XXX-Analog
Headsets
XXX-Analog
Wideband
-
---ExternalMicrophone
----ExternalSpeakers
XXXXExternalWall Mount
Headsets
Check with the headset manufacturer to confirm whether you can use it with your Cisco phone.
If you plug a headset into the phone during an active call, the audio path automatically changes to the headset.
Cisco IP Phone 7800 Series Multiplatform Phones User Guide
117

Cisco 7821 Specifications

General

Resolution	396 x 162 pixels
Lines	2
Speakerphone	Yes
Display	3.5-inch (89 mm) monochrome display
Ethernet Ports	2 x 10/100 Ethernet ports
Power	IEEE PoE Class 1
Headset Port	Yes
Protocols	SIP
Audio Codecs	G.711, G.722, G.729, iLBC
Weight	0.9 kg (1.98 lb)