166ViewsISDN interface viewPredefined user rolesnetwork-adminParameterscaller-number: Specifies an acceptable calling number, a case-insensitive string of 1 to 24characters.Usage guidelinesCalling number verification enables an ISDN interface to accept calls only from a s pecific callingparty.Call setup will fail in the following situations:• The calling number in the incoming SETUP message is not configured on the ISDN interface.• The incoming SETUP message does not include a calling number.Examples# Configure BRI 2/4/0 to accept incoming calls only from the calling number 400. system-view[Sysname] interface bri 2/4/0[Sysname-Bri2/4/0] isdn caller-number 400Related commandsisdn callingisdn callingUse isdn calling to configure ISDN calling number identification.Use undo isdn calling to restore the default.Syntaxisdn calling calling-numberundo isdn callingDefaultISDN interfaces do not send a calling number in outgoing SETUP messages for any services exceptvoice services.ViewsISDN interface viewPredefined user rolesnetwork-adminParameterscalling-number: Specifies a calling number, a case-insensitive string of 1 to 24 characters.Usage guidelinesISDN calling number identification enables an ISDN interface to include the call number of a callingparty in the outgoing call SETUP messages. The calling number information can be used for differentpurposes. For example, the service provider can use this information to identify the pricing schemefor the calling party. The called party can use this information to verify the origin of calls.