Appendix I

Technical specifications

RF frequency band

1921.536 MHz — 1928.448 MHz

 

 

 

Channels

5

 

 

 

 

Operating temperature

32°F — 122°F

 

0°C — 50°C

 

 

 

Telephone base voltage

96 — 130 Vrms

(AC voltage, 60Hz)

 

 

 

 

 

Telephone base voltage

6VAC @300mA

(AC adapter output)

 

 

 

 

 

Handset voltage

2.4 — 3.2 VDC

 

 

 

 

 

 

Operation

 

Operating time*

 

 

 

Talk time (handset)

 

Up to eight hours

 

 

 

Talk time (speakerphone)

 

Up to five hours

 

 

 

Standby

 

Up to six days

 

 

 

* Operating times varies 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. 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.

Extended range and clarity

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

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AT&T EL51109 user manual Technical specifications, Operation Operating time