Gsm Modem By Twin Data Systems Pvt. Ltd.

Features of our GSM Modems are : -

* Use Advanced Digital GSM and GPRS technology
* Rapidly deployed / Easily configurable & Compact size.
* Work with all sim cards (Pre-paid/Post-paid).
* Display name of Network Operator (Dependent on Network).
* Display signal strength in db gain value and with graphical sign.
* Double line LCD display with Built in Caller ID.
* Built-in polarity reversal for GSM Line.
* Works behind EPABX for office/ Residence use
* Provision for locking outgoing & incoming calls
* Provision of dialing local numbers without code on GSM line also.
* Provision on attaching with PCO machine, Payphones.
* Provision of dialing and locking 95, STD, ISD on GSM line.
* Direct Group Dialing-No need to prefix a 0a just dial a 95a & telephone no.
* Easily programmable via touch keys of connected telephone.
* Network locking (Optional).
* External antenna with 3m length for better reception of Signal.
* Password protection for all Menu driven interfaces.
* Can be installed up to 30 km. Radius from BTS ( Base Transceiver Station).