AT&T TL74258 - Manual (Page 85)

Channels 95
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)
9VDC @600mA
Handset voltage 3.2 — 4.7 VDC 550mAh
Charger voltage
(AC adapter output)
9VDC @200mA
Replacement handset
battery
3.6V 600mAH
RF frequency band
(handset to telephone
base)
2400 MHz — 2483.5 MHz
RF frequency band
(telephone base to
handset)
5725 MHz — 5850 MHz
80
Base batteries Three AAA alkaline
Appendix K
Technical specifications
5.8 GHz digital spread spectrum frequency hopping technology
This technology digitally transmits your voice across multiple channels in both
the 5.8GHz and 2.4GHz frequencies to provide enhanced range, ultimate sound
clarity and advanced privacy against eavesdropping on your calls, while not
interfering with wireless routers.
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.