3200 can'e make calls on SIMPLUS GSM POLAND

hi
i have problem with 3200. soft ver a03.12
phone was lock on polish provider ERAGSM(26002) after unlock phone can log into any network and all is OK, exept one thing it can't make outgoing&incoming calls when log into SIMPLUS GSM (it's prepaid system in poland) there is no problem with abonent card of PLUS GSM(normal network)

there is no problem in other provider in poland ex IDEA or POPIdea, era(taktak) phone can make outgoing & incoming calls, only when logged into SIMPLUS phone establish call but after 2 sec signal beep, beep. also when incoming call is accept only 2sec hear voice ane then beep, beep...

i switch display "MY ID" to YES , also i change soft ver to new one v4.16 and still no outgoing&incoming calls on SIMPLUS (prepaid of PLUSGSM)
any suggestion?