appears.
3. From the shortcut menu, choose Port Settings; the Basic Channel Information page
appears with the Basic tab selected (displayed in green):
Figure 57-3: Basic Channel Information Page
4. To view additional channel information, click the required tab - SIP, RTP/RTCP, and
Voice Settings.
57.3 Viewing NFAS Groups and D-Channel Status
The NFAS Group & D-Channel Status page displays the status of the device's D-channels
and NFAS groups. The status of a D-channel and NFAS group can be "In Service" or "Out
of Service". This page also indicates whether the D-channel is a primary or backup D-
channel.
This page also enables you to manually switchover between active and standby D-
channels belonging to the same NFAS group. This is done using the Switch Activity
button. For more information, see 'Performing Manual D-Channel Switchover in NFAS
Group' on page 292.
Note: This page is applicable only to T1 ISDN protocols supporting NFAS, and only
if the NFAS group is configured with two D-channels.
To view the status of the D-channels and NFAS groups:
Open the NFAS Group & D-Channel Status page (Status & Diagnostics tab > VoIP
Status menu > NFAS Group & D-Channel Status).
Figure 57-4: NFAS Group & D-Channel Status Page
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