NowSMS supports 2 types of GSM modems for sending and receiving SMS and MMS messages:
1.) USB or RS-232 connected GSM modems that support an “extended AT command set” for sending/receiving SMS messages, as defined in the ETSI GSM 07.05 and and 3GPP TS 27.005 specifications (AT+CMGS).
2.) Android devices running the NowSMS Modem app using either local WiFi or cellular data/internet connectivity. (Avoid dual SIM devices.)
As there are thousands of different device models and variations, we do not recommend specific devices.
However, we have begun asking recent customers which modems they are using, and will update this page with this information.
Modems that work with NowSMS – February 2018
Huawei E220 and a couple of other newer Huawei models (customer unable to disconnect them to open and read the newer models) – Russia
Huawei E303 – Jordan
Google Pixel Phone – USA
Android mobile phone (doesn’t say which) as Huawei E3531 didn’t work – Jersey
Option Icon322 – USA (also known as the Globetrotter Icon322 when purchased from AT&T
Before Android phones mostly used iTegno 38xx GSM modems – Malaysia
Huawei E3276 – Canada
TP-Link – MA180 3.75G HSUPA USB Adapter – Slovakia
Huawei E3131 – Germany
Multitech Cell 100 Series on AT&T – USA (MTC-H5-B03-KIT) – USA
Huawei E173 – Morocco
Teltonika ModemCom/G10 – Malaysia
Android phones – vivoY55, vivoY25, ASUS_X00AD, opp A37 – Malaysia
Motorola USB Modem – Argentina