424 CHAPTER 22: ISDN C ONFIGURATIONConfiguring theNegotiation Parametersof ISDN Layer 3 ProtocolFollow these steps to configure the negotiation parameters of ISDN layer 3protocol:Set ISDN protocol mode isdn protocol-mode mode OptionalAn ISDN PRI interfaceoperates in user mode bydefault.Configure the negotiationparameters of ISDN Layer 3protocolRefer to “ISDNConfiguration” on page421OptionalConfigure the called number andsubaddress to be checked during aincoming callRefer to “ISDNConfiguration” on page421OptionalConfigure to send calling numberduring an outgoing callRefer to “ISDNConfiguration” on page421OptionalSet the local management ISDN BchannelRefer to “ISDNConfiguration” on page421OptionalConfigure ISDN B channel selectionmodeRefer to “ISDNConfiguration” on page421OptionalConfigure ISDN PRI sliding windowsizeRefer to “ISDNConfiguration” on page421OptionalConfigure statistics about ISDNmessage receiving/sendingRefer to “ISDNConfiguration” on page421OptionalConfigure the allowed incomingcalling numberRefer to “ISDNConfiguration” on page421OptionalTo do... Use the command... RemarksTo do... Use the command... RemarksEnter system view system-view -Enter specified interface view interface interface-typeinterface-number-Set the length of the callreference adopted when theISDN interface initiates a callisdn crlengthcall-reference-lengthOptionalThe call reference length istwo bytes for CE1 PRI andCT1 PRI interfaces and onebyte for BRI interfaces bydefault.Configure the router to switchthe ISDN protocol state toACTIVE to start the data andvoice service communicationsafter sending a CONNECTmessage without having towait for a CONNECT ACKmessage.isdn ignore connect-ack OptionalBy default, in the event thatthe router is communicatingwith an exchange, the ISDNprotocol must wait for theCONNECT ACK in response tothe CONNECT messagebefore it can switch to theACTIVE state to start the dataand voice servicecommunications.
