... notice, etc.. New GSM modem for bulk sms sending TM100 Key words: GSM SMS Modem, GSM Modem, SMS Gateway Brief ... school report, notice for electricity and gas fee, balance notice, etc.With standard RS232 or USB (optional ... power supply for the convenience of the customerSpecificationsl Wireless FeaturesWith industrial module of Tri- ... Data CSD: Transmissions rates 2.4, 4.8, 9.6, 14.4Kbps;Data Fax: ...