3com MSR 20-20 참조 매뉴얼

dialer isdn-leased { 128k | number }

undo dialer isdn-leased { 128k | number }

ISDN BRI interface view

128k: 128 kbps ISDN leased line connection.

number: 64 kbps ISDN leased line connection. It can be 0 for the first B channel or 
1 for the second B channel.

Use the dialer isdn-leased 128k command to configure 128 kbps leased line 
connection.

Use the undo dialer isdn-leased 128k command to remove 128 kbps leased 
line connection.

Use the dialer isdn-leased number command to configure 64 kbps leased line 
connection.

Use the undo dialer isdn-leased number command to remove 64 kbps leased 
line connection.

By default, no ISDN leased line connection is configured.

You must manually remove the existing leased line configuration before switching 
from single B channel leased line to 128 kbps leased line.

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# Configure 128 kbps leased line connection.

<Sysname> system-view

[Sysname] interface bri 1/0

[Sysname-Bri1/0] dialer isdn-leased 128k