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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Screen reference
753ISDN trunk group
17
Test Call BCC
Indicates the Bearer Capability Code (BCC) used for the ISDN test call.
Testcall ITC
Controls the encoding of the Information Transfer Capability (ITC) codepoint of
the bearer capability IE in the SETUP message when generating an ISDN test call.
Allowed values are
rest (restricted) and unre (unrestricted).
NOTE:
ISDN Testcall feature has no routing, so a testcall is never blocked
due to an incompatible ITC.
Testcall Service
Specifies the call-by-call selection for an ISDN test call. Only appears if the
Service Type field is cbc. Valid entries are all of the services listed in ‘‘
Service
Type’’ on page 750, excluding sddn or any new Facility Type of 0 (feature), 1
(service), or 3 (outgoing) that is defined by users on the Network Specific Facility
Encoding screen.
Trunk Hunt
The switch performs a trunk hunt when searching for available channels within a
facility in an ISDN trunk group. Enter
ascend to enable a linear trunk hunt search
from the lowest to highest numbered channels, or
descend for a linear trunk hunt
search from the highest to lowest numbered channels. With both
ascend and
descend, all trunks within an ISDN trunk group are selected based on this field
and without regard to the order in which trunks are administered within the trunk
group.
Enter
cyclical to enable a circular trunk hunt based on the sequence the trunks
were administered within the trunk group. When using ISDN-BRI interfaces, only
cyclical is allowed.
Valid entries Usage
0
Voice
1
Mode 1
2
Mode 2 Asynchronous
3
Mode 3 Circuit
4
Mode 0