Michael McCormick

Hi. We've been using M90 with GSM modems for SMS for some time now. However, we've been havin a lot of problems with the latest enforma modems. They don;t seem to want to work! An example is one that was installed to replace an old sony GM29. The original modem was working fine, sending SMS. The new one works with the same code, but only sends SMS for one day before needing to be power off and back on again. Has anybody had any issues with the M90 / M91 and GSM modems? Does anybody have any additions to the initialisation strings that could help? Thanks, Michael