Huawei v200r001 user manual Dialer string dial-string isdn-address

User Manual - Configuration Guide (Volume 3)	Chapter 1
Versatile Routing Platform	DDR Configuration

Please use the following commands in the configuration mode of the designated physical interface.

Table DC-1-1Enable DDR in Legacy DDR mode

Operation	Command
Enable DDR in Legacy DDR mode	dialer in-band

This command is needed to make a call through an asynchronous serial port. For ISDN interface, the system automatically loads this command, making manual configuration with this command unnecessary.

Step 2: set the dial string of the interface.

The following command is needed to call only one destination through this interface.

Please use the following command in the configuration mode of the physical interface that directly enables DDR.

Table DC-1-2Set the dial string of the interface

Operation	Command
Set the dial string of the interface	dialer string dial-string [:isdn-address]

2)Call to multiple points Step 1: enable DDR.

For configuration mode and command format, please refer to Step 1 of “Call to a single point”.

Step 2: set different dial strings for different destinations.

Please use the following command in the configuration mode of the physical interface that directly enables DDR.

Table DC-1-3Set different dial strings for different destinations

Operation	Command
Set different dial strings for different destinations	dialer map protocol next-hop-address dialstring [:
	isdnsubaddress]
Can define different identifiers for ISDN interface	dialer map protocol next-hop-address dialstring [:
	isdnsubaddress]

3)Call from Dialer Rotary Group

Dialer Rotary Group matches a logic dial interface to a group of physical interfaces. The configurations for this logic dial interface will be inherited by the physical interfaces in the Dialer Rotary Group. When a logic dial interface has been configured, once a physical interface is put in Dialer Rotary Group, this physical interface will inherit all configurations for the logic dial interface.

When Dialer Rotary Group has been configured, if multiple destinations have been set for a logic dial interface, then any physical interface in Dialer Rotary Group can be used to call any previously set destination.

Dialer Rotary Group applies to the interfaces with multiple calls to multiple destinations.

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