Sell 4-Channel GSM Fixed Wireless Terminal

1.  Suitable for GSM 900/1800MHz, using SIM card
2.  Making & answering calls after connecting to telephone set
3.  Available to connect with telephone set, PBX, Billing machine, etc
4.  Caller ID
5.  Built-in PIN code protection featured with locking device/card/network
6. Supports the functions of redialing and hands-free
7. Voice adjustment of calling in and out, multi-lever volume to be chosen
8.  Optional to match with various high-gain antennas
9.  Featured with signal intensity indicator, working status indicator, breakdown
indicator, etc
10.  Can proceed with setting up and modification of parameters through the phone
set