Appendix
Technical specifications
RF frequency band | 1921.536MHz - 1928.448MHz |
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Channels | 5 |
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Operating temperature | 32°F - 122°F |
| 0°C - 50°C |
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Headset voltage | 3.2VDC - 4.2VDC |
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Charger voltage | 6VDC @400mA |
(AC adapter output) |
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Replacement battery | 3.7V 240mAH |
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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
Operating range
This cordless headset operates within the maximum power allowed by the Federal Communications Commission (FCC). Even so, this headset and its base can communicate over only a certain distance, which can vary with the locations of the headset and its base, the weather, and the construction of your home or office.
Extended range and clarity
The TL7700 is a fully cordless DECT 6.0 headset offering a range of up to 500 ft. Sound level protection technology conforms to the current regulations and is used to filter out the loud and
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