Cisco 8821 User Manual

•
Dry the phone with a soft, dry, lint-free cloth.
•
Leave your phone in a dry area with some air flow; for example, a fan blowing cool air can be directed
onto the phone speaker grill to help the phone dry out.
Here are some things you don't do:
•
Don't open the battery door while the phone is wet.
•
Don't use compressed air to blow off the water.
•
Don't use a hair dryer to dry off the phone.
•
Don't put a cotton swab, paper towel, or cloth into the headset jack or inside the battery compartment.
•
Don't tap the phone on a hard surface.
•
Don't charge a wet phone using the charging cable. You must wait until the phone is completely dry.
•
Don't put a wet phone into the desktop charger, or multicharger. You must wait until the phone is
completely dry.
To ensure that the phone does not get water into the battery compartment, make sure that the compartment
is tightly closed. See Install the Phone Battery, on page 17.
If the sound is muffled after you dry the phone, there may still be water in the microphone or speaker
compartments. Place your phone, speaker-side down, on a dry, lint-free cloth to see if water drips out. If
there is still water in the phone, allow the phone to completely dry before you use it.
Caution
Additional Help and Information
If you have questions about the functions available on your phone, you should contact your administrator.
The Cisco web site (http://www.cisco.com) contains more information about the phones and call control
systems.
•
For quick start guides, accessory guides, and end-user guides in English, follow this link:
http://www.cisco.com/c/en/us/support/collaboration-endpoints/unified-ip-phone-8800-series/
products-user-guide-list.html
•
For guides in languages other than English, follow this link:
http://www.cisco.com/c/en/us/support/collaboration-endpoints/unified-ip-phone-8800-series/
tsd-products-support-translated-end-user-guides-list.html
•
For licensing information, follow this link:
http://www.cisco.com/c/en/us/support/collaboration-endpoints/unified-ip-phone-8800-series/
products-licensing-information-listing.html
Related Topics
Troubleshooting, on page 89
Cisco Wireless IP Phone 8821 and 8821-EX User Guide
15
Your Phone
Additional Help and Information

Cisco 8821 Specifications

General

Wi-Fi	Yes
Ethernet LAN	No
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	3.0+HS
Security algorithms	EAP-FAST, EAP-TLS, PEAP, WPA
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11d, IEEE 802.11e, IEEE 802.11g, IEEE 802.11n, IEEE 802.11r
USB 2.0 ports quantity	1
Voice codecs	G.711, G.711a, G.722, G.729, G.729ab, iLBC
Volume control	Digital
Product type	IP mobile phone
Product color	Black
Input frequency	50 - 60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	0.2 A
Display diagonal	2.4 \
Display resolution	240 x 320 pixels
Frequency band	2.412, 2.472, 5.180, 5.240, 5.260, 5.320, 5.500, 5.700, 5.745, 5.825 GHz
Lines quantity	- lines
Phonebook capacity	- entries
Storage temperature (T-T)	-30 - 60 °C
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Safety	UL 60950-1, CAN/CSA 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1, IEC 60529 (IP 67)
Certification	● 47 CFR 15 B ● ICES-003 B ● EN 55022 B ● AS/NZS CISPR 22 B ● CISPR 22 B ● VCCI B ● EN 61000-3-2 ● EN 61000-3-3 ● KN 22 B ● EN 55024 ● EN 50082-1 ● EN 61000-6-1 ● EN61000-6-3 ● EN 300386 ● EN 60601-1-2 ● KN
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	17 mm
Width	56 mm
Height	132 mm
Weight	126 g