Main Functions:
Suitable for GSM 900/1800MHz or GSM 850/1900/1800MHz Making & answering calls after connecting to telephone set Available to connect with telephone set, Billing machine, PBX etc Bar incoming call or outcall Support reverse polarity Supports the functions of redialing and hands-free Voice adjustment of calling in and out, multi-lever volume to be chosen Caller ID Featured with signal intensity indicator, working status indicator, breakdown indicator, etc Built-in PIN code protection featured with locking device/card/network
Technique Parameters:
Working Frequency
GSM 900/1800MHz or
GSM 850/1900/1800MHz Power Consumption: < =5W Working Voltage: DC12V User Access Port: Dialing tone frequency: 450Hz continued Busy tone frequency: 450Hz 0.35s/0.35s