Appendix

Technical specifications

RF frequency band

1921.536MHz - 1928.448MHz

 

 

 

 

Channels

5

 

 

 

 

 

Operating temperature

32°F - 122°F

 

 

0°C - 50°C

 

 

 

Telephone base voltage

96Vrms - 130Vrms

(AC voltage, 60Hz)

 

 

 

 

 

Telephone base voltage

6VDC @ 400mA

(AC adapter output)

 

 

 

 

 

Handset voltage

2.4VDC - 3.2VDC

 

 

Charger voltage

6VAC @ 300mA

(AC adapter output)

 

 

 

 

 

 

 

 

 

 

 

Operation

 

 

Operating time*

 

 

 

 

Talk time (cordless handset)

 

 

Up to 7 hours

 

 

 

 

Talk time (cordless handset speakerphone)

 

Up to 5 hours

 

 

 

 

Standby

 

 

Up to 7 days

 

 

 

 

* Operating times vary depending on your actual use and the age of the battery.

DECT 6.0 digital technology

The AT&T DECT 6.0 products offer unsurpassed range performance and sound clarity. This is achieved through a unique antenna design and advances in noise-filtering technology. An independent laboratory has confirmed that AT&T DECT 6.0 products perform up to 45% better in range competitions against similarly equipped phones of the leading competition. Now calls can be taken in the basement, backyard and garage with exceptional sound quality.

Telephone operating range

This cordless telephone operates within the maximum power allowed by the Federal Communications Commission (FCC). Even so, this handset and telephone base can communicate over only a certain distance — which can vary with the locations of the telephone base and handset, the weather, and the construction of your home or office.

Redefining long range coverage and clarity

This telephone base comes with an antenna which gives much better clarity and covers a longer range than before.

HD audio

HD audio improves sound quality by expanding and rebuilding frequencies that are lost with traditional phone calls. There is no additional telephone service requirement to use HD audio. It is designed to work with standard telephone service. Your system will automatically enhance all received sound with HD audio.

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AT&T ATTCL82201, ATTCL82401, ATTCL82301 user manual Technical specifications, Operation Operating time