575

 

By default, HLC information element is carried in SETUP messages when placing

 

voice calls.

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

# Configure ISDN to carry the HLC information element in the SETUP messages for

 

the voice calls placed on the BRI interface 1/0.

 

<Sysname> system-view

 

[Sysname] interface bri 1/0

 

[Sysname-Bri1/0] isdn ignore hlc

 

 

isdn ignore llc

 

Syntax

isdn ignore llc

 

undo isdn ignore llc

View

ISDN interface view

Parameter

None

Description

Use the isdn ignore llc command to disable ISDN to carry the Lower Layer

 

Compatibility (LLC) information element in the SETUP messages sent when placing

 

voice calls.

 

Use the undo isdn ignore llc command to configure ISDN to carry the LLC

 

information element in SETUP messages.

 

By default, LLC information element is carried in SETUP messages when placing

 

voice calls.

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.

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3Com MSR 50, MSR 30 manual Isdn ignore llc, Voice calls placed on the BRI interface 1/0, Undo isdn ignore llc, 575