Hey guys I am using my MPX 220 as a pay as you go phone I took the SIM card out of my cheapee sony ericson and installed it in my MPX 220. Now for the bad news I have been told that Cingular will be going to a new technology GSM and that I have to replace my phone with a new one I want to keep my MPX220 will this phone work on the GSM network?? thanks for the help!!!
Of course cingular will maintain GSM services . You can use your phone freely. I am sure the phone will crap out way before cing gets out of gsm.someone told you about HSDPA/UMTS. These will be paralell to GSM