|
Specification |
Description |
|
Firmware upgrades |
You can download firmware changes from Cisco.com. |
|
Software upgrades |
Software upgrades are supported with a Trivial File Transfer Protocol (TFTP) server. |
|
Dimensions (H x W x D) |
Cisco Unified IP Phone 6921: 164 x 188 x 205 mm (6.4 x 7.4 x 8.1 in.). |
|
Weight |
Cisco Unified IP Phone 6921: Standard: 1031g (36 oz); Slimline: 940g (33 oz). |
|
Phone casing composition |
Polycarbonate acrylonitrile butadiene styerene (ABS) plastic. |
Power Requirements
|
Power Requirement |
Description |
|
IEEE 802.3af PoE |
The phones can receive power from IEEE 802.3af-compliant blades. |
AC Region and Country-Specific Power Cords
|
Part Number |
Country |
|
CP-PWR-CORD-AP= |
Asia Pacific |
|
CP-PWR-CORD-AR= |
Argentina |
|
CP-PWR-CORD-AU= |
Australia |
|
CP-PWR-CORD-CE= |
European Community |
|
CP-PWR-CORD-CN= |
China |
|
CP-PWR-CORD-JP= |
Japan |
|
CP-PWR-CORD-NA= |
North America |
|
CP-PWR-CORD-SW= |
Switzerland |
|
CP-PWR-CORD-UK= |
United Kingdom |
Temperature Ratings
|
Temperature Variable |
Description |
|
Operating temperature |
32 to 104ºF (0 to 40ºC) |
|
Relative humidity |
10 to 95% (noncondensing) |
|
Storage temperature |
14 to 140ºF (-10 to 60ºC) |
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