AT&T 2820 - Manual (Page 40)

EN
• Do not mix new and old battery pack or battery packs of different
types. Replace battery pack with the same or equivalent type
recommended by the manufacturer.
• Every effort has been made to ensure the highest standards of
reliability for your phone. However, if something does go wrong, do
not try to repair it yourself - Contact the AT&T Customer Service
Center at 800-667-2118.
TYPE DESCRIPTION
Handset L x W x H 5.55 x 1.73 x 0.94 in
Handset weight 4.41oz (with battery)
Base L x W x H 4.96 x 4.48 x 1.50 in
Base Weight 5.29 oz
Standard Worldwide Digital Cordless
Telecommunication (WDCT)
Frequency range 2.4GHz ISM
Channel bandwidth 1.729MHz
Modulation GFSK
Communication range Up to 984ft in open area
Base power supply 120V / 60Hz
Handset power supply 1 x NiMH 650mAh 3.6V (AAA) battery pack
Operating time Talk: Approximately 5 hours
Standby: Approximately 120 hours
Operating temperature 32°F to 113°F
Storage temperature -4°F 140°F
SPECIFICATIONS
39