tonuprocker
New member
Can somebody explain how roaming works on T-Mobile/GSM phones. I have an 8320 and my plan includes roaming but when ever I am out of TMo coverage my phone goes to SOS and only allows me to make Emergency calls, it does not allow me to make phone calls or use data. If I manually switch networks to At&t or another GSM carrier it shows SOS as well. Does GSM roaming not work like CDMA roaming where the device automatically switches to another network and allows calls and data (ie. sprint to verizon and vise versa). Or do I have a problem. Any help is appreciated! Thanks