Patent ID: 6553001
Filing Date: 2003-04-22
Classification: H04Q

Abstract:
Apparatus for automatically-configuring a service profile identifier (SPID) to be used with data terminal equipment (DTE), the DTE adapted to be connected through data circuit terminating-equipment (DCE) to a local integrated services digital network (ISDN) switch, the apparatus comprising, in either the DTE or DCE:a processor; a memory, connected to the processor, for storing both executable instructions and a database of pre-defined SPID formats, for a plurality of different types of ISDN switches, wherein corresponding ones of the SPID formats to be used with each one of said switch types are ordered in terms of relative popularity of usage of the corresponding formats with said one switch type so as to form a corresponding set of SPID formats for each of said switch types; wherein, in response to the stored instructions, the processor: a) generates, using the database of SPID formats, and sends to the local ISDN switch, connected to the DCE, an initialization request message for undertaking initialization with the local ISDN switch, wherein the request message contains a SPID having a most popularly used SPID format in the set corresponding to a type of the local ISDN switch; and b) successively repeats operation (a) but with a next successive most popularly used one of the SPID formats in the set corresponding to the type of the local switch, so as to form a separate successive initialization request message having a SPID in the format of the next successive most popularly used SPID format in the set, until either initialization occurs or all the SPID formats in the set corresponding to the type of the local ISDN switch are exhausted.