[sleep mode] no incoming call
the phone has been fully unlocked. no problem at all while on active mode - screen on (outgoing/incoming calls, sms, wifi... all are working fine). however, after i pressed the sleep button and the phone goes to sleep mode - screen off and leave the phone for 20 seconds. then i am not able to receive any call or sms. no missing call alert as well it just said "blah... please try again later". the phone is like turned off but it's on sleep mode only! once i press the home button and go back to the active mode - with screen on and all are working fine again. it's so annoying!
anyone got the same problem? what can i do... please help!... :confused: