Huawei v200r001 user manual III. Configure an interface to receive calls

User Manual - Configuration Guide (Volume 3)					Chapter 1
Versatile Routing Platform					DDR Configuration
		Router
	Dialer			Dialer
	Interface 1		Interface 2

Serial 1

Serial 6

Serial 5

Serial 2

Serial 3 Serial 4

Figure DC-1-2Schematic diagram of Dialer Rotary Group

III.Configure an interface to receive calls

1)Receive calls from a single point

To configure an interface to receive calls from a single point, just enable DDR.

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

As described above, for ISDN BRI/PRI interface, Legacy DDR has been enabled by default, making execution of this command unnecessary.

2)Receive calls from multiple points

Usually, Dialer Rotary Group can be defined to receive calls from multiple points. Calls can be received flexibly from Dialer Rotary Group.

Step 1: create a logic dial interface.

For configuration mode and command format, please refer to Step 2 of “Call from Dialer Rotary Group”.

Step 2: enable DDR.

For configuration mode and command format, please refer to Step 2 of “Call from Dialer Rotary Group”.

Step 3: select PPP encapsulation and select CHAP or PAP authentication.

Receiving calls from multiple points entails CHAP or PAP authentication, otherwise various points cannot be distinguished from each other. CHAP authentication is recommended because it has encrypted password before transferring it, while PAP authentication transfers clear text.

Please use this command in the configuration mode of the logic dial interface.

1-6