Hangfire

We have currently switched to the Novatel SA G+ modems which are supposed to be a direct replacement for the Enfora 1318. These things are giving us a lot of trouble. Has anyone figured out how to set them up to work reliably? I had to remove a couple of the setup AT commands from the modem block, and it seems to help to manually enter the setup stuff to the modem rather than using the Visilogic tool. Still they will take a very long time to start working and dont stay working reliably. Now I have a couple that refuse to register to the network at all . Just wondering if anyone else has been through this or knows what can be done to make them work correctly.

Thanks for your response Walkerok. We have tested with an att prepaid card, it was actually what we first started testing with before choosing Jazz. I will look into trying a tmobile phone, i can also manually send a text with a computer in hyperterminal which is ugly but it works. Don't remember if i tried that yet. But the ATT card works flawlessly with our device....

Walkerok- What kind of tower issues were you having? I have gotten some sim cards in from Jazz and started testing our setup, and we have an issue where our device will respond to inbound texts but a device initiated text will not go through... They told us its an issue with ATT as we are connecting to an ATT tower near us. I hope this isnt a widespread issue!

Thank you for your replies. I'm actually in Texas. I have spoken with the company Jazz Wireless Data (T-Mobile) today, that Walkerok mentioned and I'm somewhat shocked at the pricing difference compared to ATT and Sprint, and I found out that Sprint doesn't use GSM which rules out GSM modems with them anyway. A Sprint M2M rep actually referred me to T-Mobile. I appreciate the leads on Kore Telematics, I'll look into them. To correct my previous post, it's now my understanding that ATT may not be taking down its GSM altogether, but they may be redistributing that bandwidth to the newer stuff. I don't know that for sure.

I have been working on setting up some monitoring telemetry with Unitronics PLC's and gsm modems. We found the GSM modems very cheap and have a few of them. I started looking into which carrier we can get set up with and found out today that ATT is apparently taking down it's GSM network. Disregarding the fact that AT&T neglected to mention this, they were perfectly willing to sell us an account with GSM. Our telemetry plan is based entirely on SMS at the moment. Who is a good choice for GSM with data plans including SMS?