Cisco 8821 User Manual page 12

The Cisco Wireless IP Phone 8821 and 8821EX
Figure 1: Cisco Wireless IP Phone 8821 and 8821EX
These phones, like other network devices, must be configured and managed. The phones support G.711,
G.722, G.729a, G.729ab, MP3, WAV, iLBC, iSAC, OPUS, and AMR WB codecs. The phones also support
uncompressed wideband (16 bits, 16 kHz) audio.
The phones are hearing aid compatible (HAC) but do not have any TTY features. They have a centered "dot"
or "nib" on the 5 key that is a tactile identifier.
The physical characteristics include:
• Resistance to damage from dropping the phone
• Tolerance of antibacterial and alcohol-based wipes
• Latex- and lead-free
• Shockproof and vibration-proof
• USB 1.1 interface
• IP 67 level protection, which indicates dust-tight equipment that is protected against splashing water
• Cisco Wireless IP Phone 8821EX only:
In addition to basic call-handling features, your phone can provide enhanced productivity features that extend
your call-handling capabilities.
Depending on the configuration, your phone supports:
Cisco Wireless IP Phone 8821 and 8821EX User Guide
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◦ ATEX Zone 1/Class 2 certification prevents ignition of surrounding gas vapors by the phone.
◦ CSA Division 2/Zone 2 certification provides access to mobile collaborative communications.
◦ Industry-standard yellow styling offers fast recognition in emergency situations.
Your Phone