NF-866 is a portable wall-hung telephone with integrated circuit, which is compliant with the standards of the People's Republic of China, and is allowed to be used in the telephone network.
First, the main functions:
1.FSK and DTMF caller ID, automatic detection.
2. The 16-digit number is displayed.
3. Dynamic call storage 38 groups.
4.5 groups of 16-bit outgoing calls.
5.HOLD function can be picked up and the host automatically hang up.
6. Automatic chase, dial ring back.
7.Flash time 1000ms / 600ms / 300ms / 110ms optional. New incoming light.
(1) Ambient temperature: -10 ~ +40 ℃
(2) relative temperature: 10% to 95%
(3) Atmospheric pressure: 86 ~ 106kpa
(4) Environmental noise: ≤ 60dB (A)
(5) Ringing sound level: ≥ 70dB (A)
(6) transmission index (when the user line length is 5km): send loudness Rating: ≤ 12dB;
Receiving loudness rating: ≤-1dB; lateral tone hidden evaluation: ≥ 10dB
(7) multi-tone multi-frequency dialing: in line with GB / T15279-94 4.3.2.