1Phone Call: This fixed wireless terminal allows you to make local call, domestic call and international call by connecting with a common wired desktop phone and install a GSM SIM card. 2Easy Installation: This GSM ID dialer uses GSM mobile phone SIM card, which is easy to install and operate, with strong signal reception capability and stable performance. 3Wide Application: This GSM desktop caller is suitable for remote area, mountains, telemarketing, public shop, office, factory, removable places such as ships, trains, and long distance buses. 4Antipodal Signal: This GSM fixed wireless terminal has antipodal signal which can be connected to fare register or computer fare register. 5Powerful Signal Reception: This GSM caller features powerful signal reception and easy setting, and it can be operated at the same way as ordinary landline telephone.