AT&T EL51209, EL51359 User Manual

Technical specifications

Appendix I
Technical specifications
* 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.
RF frequency band
1921.536 MHz — 1928.448 MHz
Operating temperature
32°F — 122°F
0°C — 50°C
Telephone base voltage
(AC voltage, 60Hz)
96 — 130 Vrms
Telephone base voltage
(AC adapter output)
6VAC @300mA
Handset voltage
2.4 — 3.2 VDC
Charger voltage
(AC adapter output)
6VAC @300mA
Operating time*
Talk time (handset)
Up to eight hours
Talk time (speakerphone)
Up to five hours
Up to six days