3Com MSR 30, MSR 50 manual Isdn ignore hlc, Undo isdn ignore connect-ack, Undo isdn ignore hlc

574CHAPTER 37: ISDN CONFIGURATION COMMANDS

	undo isdn ignore connect-ack
View	ISDN interface view
Parameter	None
Description	Use the isdn ignore connect-ackcommand to configure the router to switch
	the ISDN protocol state to ACTIVE to start the data and voice service
	communications after sending a CONNECT message without having to wait for a
	CONNECT ACK message. Use the undo isdn ignore connect-ackcommand to
	restore the default setting.
	By default, in the event that the router is communicating with an exchange, the
	ISDN protocol must wait for the CONNECT ACK message in response to the
	CONNECT message before it can switch to the ACTIVE state to start data and
	voice service communications.
n	■ In the event that the router is communicating with an ISDN exchange, its
	settings must be the same as those on the exchange.
	■ You are not allowed to configure this command on an ISDN interface if there is
	still a call on it. This command can take effect only if it is configured when
	there is no call on the interface. Alternatively, you can manually disable the
	interface by executing the shutdown command, configure the command, and
	then enable the interface by executing the undo shutdown command. The
	operations, however, will lead to the disconnection of the call existing on the
	interface.
Example	# Set the call process on the BRI interface 1/0 to proceed to the ACTIVE state
	without waiting for CONNECT ACK messages.
	<Sysname> system-view
	[Sysname] interface bri 1/0
	[Sysname-Bri1/0] isdn ignore connect-ack
isdn ignore hlc
Syntax	isdn ignore hlc
	undo isdn ignore hlc
View	ISDN interface view
Parameter	None
Description	Use the isdn ignore hlc command to disable ISDN to carry the higher layer
	compatibility (HLC) information element in the SETUP messages sent when placing
	voice calls.
	Use the undo isdn ignore hlc command to configure ISDN to carry the HLC
	information element in SETUP messages.