Calls cannot bereceivedThe phone is notswitched on Switch the phone onIncoming calls arebarred Disable the incoming call barringThe phone is notregistered to anetworkMove to a coverage area andoperate your phone after it hasregistered with a network.Emergency callscannot be madeYou are not in aGSM coverage areaCheck that the antenna symbol Sis displayed - move to a coveragearea and operate your phone whenthe antenna symbol is displayedTelephonenumbers cannot berecalled fromPhonebookThe phone is locked Unlock the phonePhone number hasbeen restricted Switch off restrictionImportant Error MessagesThese are some of the most important error messages which may be displayed:Area Not Allowed Roaming in the selected area is not allowedNetwork NotAllowed Roaming with the selected network is not allowedSecurity FailureThe network has detected an authentication failurebecause your SIM is not registered with that network -contact your Service ProviderSIM Blocked /Contact ServiceproviderThe SIM is blocked because one of the PIN/PIN2unblocking keys (PUK/PUK2) has been entered incorrectlyten times - contact your Service ProviderSIM ErrorThe phone has detected a problem with the SIM - switchthe phone off and then back on; if the message is stilldisplayed contact your Service ProviderSIM Invalid The SIM has failed one or more of the SIM personalisationchecks - contact your Service ProviderFunctionUnavailableThe selected feature is either not supported by the SIM oris not available with the current subscription - contact yourService ProviderPIN2 InvalidatedThe PIN2 is blocked permanently because the wrongPUK2 has been entered ten times, services controlled byPIN2 cannot be used - contact your Service Provider46Trouble Shooting