Jan 14, 2005, 1:33 PM
Post #2 of 7
For future reference, posting the type of service, if known (Cingular as an example offers both TDMA and GSM digital service) in addition to the make and model of cellular handset being used will help giving more specific answers.
In general, a handset actually displaying a "No Service" message (not a audio message when you attempt to use the phone) means exactly that -- there's no network for the phone to establish a connection with. After the phone establishes the connection with the network, the phone's identity is sent to the network and the network can look up whether the account associated with the identity has full access privileges, roaming privileges, or emergency access only on the network. If the handset displays a message about Emergency (E911) service only, a "Roaming" or "Extended Roaming", another carrier's name ("Telcel GSM" or "Movistar GSM" as examples) or a simple network identifier code (334 020 or 334 003 as examples) it typically indicates that a network has been found. Rejection of an incoming or outgoing call at this point would mean that the user's account wasn't properly configured.