If you don't mind integrating a solution (for greater flexibility) Take a look at the Mikrotik router + Cellular Modem + M2M Plan.
e.g. http://wiki.mikrotik.com/wiki/Cellular_SIMcom_modems_01 http://wiki.mikrotik.com/wiki/Option_Globetrotter_HSDPA_USB_Modem http://wiki.mikrotik.com/wiki/Manual:Tools/Sms http://wiki.mikrotik.com/wiki/Monitoring_Network_thru_SMS_Alerts https://aacable.wordpress.com/2012/11/22/howto-enable-mikrotik-to-sendreceive-sms-using-gsm-modem/ BTW. One of the folks who is a subject matter expert on Mikrotik + Cell Modem etc is Brian Vargas of Baltic Networks. etc etc etc... Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net ----- Original Message ----- > From: "Graham Johnston" <johnst...@westmancom.com> > To: "nanog list" <nanog@nanog.org> > Sent: Monday, September 14, 2015 10:53:58 AM > Subject: SMS Gateway > Today we use a product from MultiTech Systems call MultiModem iSMS to send SMS > text messages from our monitoring system to our on call staff. This is a 2G > product and we need to replace it soon. I know there are more generic cellular > modems that can do texting if you are willing to put in the effort, the > product > we use currently though has a simple HTTP based API specifically to send SMS. > Is anybody out there using something similar that can work on 3G or 4G > networks? > > Graham Johnston > Network Planner > Westman Communications Group > 204.717.2829 > johnst...@westmancom.com<mailto:johnst...@westmancom.com> > P think green; don't print this email.