Performing Manual D-Channel Switchover in NFAS Group

If an NFAS group is configured with two D-channels (Primary and Backup), you can do a manual switchover between these D-channels.

➢ To manually switchover from active to standby D-channel:
1. Open the NFAS Group & D-Channel Status page (Monitor menu > PSTN Status tab > NFAS Group & D-Channel Status).
2. Select the required NFAS group, and then click the Switch Activity button.
● The Switch Activity button is unavailable (i.e, grayed out) if a switchover cannot be done due to, for example, alarms or unsuitable states.
● This feature is applicable only to T1 ISDN protocols supporting NFAS, and only if the NFAS group is configured with two D-channels.