3com 3031 Instruccion De Instalación

2 Implement the ISDN caller identification callback server in the Resource-Shared 

DCC 

Perform the following configuration in dialer interface view.

By default, callback according to ISDN caller identification is not configured.

This function can only be used with Circular DCC and must be implemented after 
Circular DCC has been configured. ISDN leased line application is fulfilled through 
establishing semi permanent ISDN MP connections. Such application requires that 
a leased line has been established on the PBX of the telecommunication service 
provider and has been connected to the remote device.

Perform the following configuration in dial interface (ISDN PRI interface) view.

By default, no B channel is configured for ISDN leased line connection.

This function can only be used with Circular DCC. With a Circular DCC, after the 
router is started, the DCC will automatically attempt to dial the remote end of the 
connection without requiring a triggering packet. If a normal connection cannot 
be established with the remote end, DCC will automatically retry at a certain 
interval. Compared with the auto-dial DCC triggered by packets, such connections 
do not automatically disconnect due to timeout. In other words, the

 command does not take effect on auto-dial.

Configure the dial number for 
calling a remote end

dialer number [ dial-number ]

Table 1132   Implementing ISDN caller identification callback (client configuration) in 
Resource-Shared DCC

Table 1133   Implementing ISDN caller identification callback (server configuration) in 
Resource-Shared DCC

Configure the local end to 
implement ISDN callback according 
to the ISDN caller identification

dialer call-in remote-number [ callback ]

Disable the local end to implement 
ISDN callback according to the ISDN 
caller identification

undo dialer call-in remote-number [ 

Configure the dialer number for 
calling a remote end

dialer number [ dial-number ]

Table 1134   Configuring ISDN leased line for Circular DCC

Configure a B channel for ISDN 
leased line connection

Delete the B channel for ISDN leased 
line connection