Figure 5-6: Ems Isdn Settings Screen - AudioCodes Mediant 2000 User Manual

4. Select the ISDN Settings
5. Perform the following configurations:
a. Configure each trunk in the group with the same values for the 'Termination Side'
parameter.
b. Select the 'EXPLICIT INTERFACE ID' check box to configure the Interface ID
(see Step d) of a NFAS Trunk. If this field is not set, only the Trunk ID is
recognized.
c. From the 'D-Channel Configuration' drop-down list, select 'Primary NFAS Trunk'
for the T1 trunk whose D-channel is used for signaling or 'Backup NFAS Trunk' for
the T1 trunk whose D-channel is used for backup signaling. The primary and
backup trunks each carry 23 B-channels while all other NFAS trunks each carry
24 B-channels.
d. In the 'ISDN NFAS Interface ID' field, enter the Interface ID (0 - 255) of the trunk
in the NFAS group.
e. In the 'Group Number' field, enter the device's NFAS Group Number. If this field is
set to 0, the trunk is not an NFAS trunk.
f. Click Apply
g. To apply the configured fields to multiple trunks, use the Profiles that appear on
the lower part of the screen.
6. Select the General Settings
same values for the following parameters:
•
Protocol Type
•
Framing Method
SIP User's Manual
tab; the 'ISDN Settings' screen appears.

Figure 5-6: EMS ISDN Settings Screen

.
tab, and then configure each trunk in the group with the
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Mediant 2000
Document #: LTRT-68809