embodiments employing shared passwords the digital telephones may permit the service provider to designate a new password as part of a configuration file in such embodiments the service provider may periodically change the password to help maintain overall system security in some embodiments gms 1060 can be implemented as a java servlet a java servlet is software executed by a web application server in response to a request for a resource java servlets typically access databases to generate responses rather than merely transferring static data files such a configuration can allow gms 1060 to ensure that the most current information is provided to the digital telephone in response to each configuration information request in some embodiments each time a digital telephone is rebooted the digital telephone initiates a re registration process wherein such a re registration process may comprise obtaining the latest configuration information from gms 1060 and then initiating the registration processes described above similarly any time an operator or administrator of the instant system wishes to force a digital telephone to update its configuration telegraph 1050 can issue a sip notify notice using the information contained in proxy cluster db 1040 which is the equivalent of cluster db 136 of fig1 to the digital telephone the receipt of a sip notify message by the digital telephone forces the digital telephone to obtain the latest configuration data in some embodiments the sip notify message must be properly.