Description: NAME = ; DESC = A Directory Number. Directory Numbers are used \ to identify incoming calls on the signaling \ channel given in nvmIsdnDirectorySigIndex. \ The format of this information largely depends on the \ type of switch or PBX the device is connected to. \ Therefore, the detailed format of this information is \ not specified and is implementation dependent. \ If possible, the agent should implement this information \ using the E.164 number format. In this case, the number \ must start with '+'. Otherwise, IA5 number digits must \ be used. (Configuration); HELP = This ICM variable contains the remote address for which \ incoming calls are handled.; CAPABILITIES = ;