How much is a CALLGSM-SIM service call?
Calling the service team (dial 154) and checking your Voice Mailbox (dial 121) is charged at Euro 26 cents /minute (worldwide). Account queries (dial 187), free Activating Voice Mail (dial 122), free Deactivate Voice Mail (dial 123), free Activating the call diversion function is free (dial 102+ followed by the phone number you wish to divert your number to) Deactivate call diversion (dial 103), free Topping up pre-paid credit, free.