Configuring the ISDN Q.931 protocol version

The ISDN Q.931 protocol has multiple versions. By default, Q.931 (1998) runs on your device. However, some devices in the network might run Q.931 (1988). For interoperation with such a device, you can configure the connecting interface to run Q.931 (1988).

To enable Q.931 (1988) on an interface:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter interface view.

interface interface-type interface-number

N/A

3. Enable Q.931 (1988) on the interface.

isdn q931-traditional

By default, an interface runs Q.931 (1998).