DID-DS1 (Direct Inward Dial Trunk)

Last Updated : Sep 05, 2023 |
Prolog information
Metadata
Keywords:
MO name in log
Alarm level
Initial command to run
Full name of MO
DID-DS1
MAJA Major alarm on a trunk indicates that alarms on these trunks are not downgraded by set options and that at least 75 percent of the trunks in this trunk group are alarmed.
MIN
test trunk grp#/mem# long
Direct Inward Dial Trunk
WRN
test trunk grp#/mem#
The DID-DS1 trunk provides a digital Direct Inward Dial (DID) trunk from a CO switch to the system through a DS1 link. A 24-channel DS1 link can support up to 24 DID-DS1 trunk calls simultaneously. A 32-channel link can support up to 30.
A DID-DS1 trunk can be used for digitized voice and data communications with DS1 signaling mode, for example, common-channel signaling. The DS1 Interface Media Module support wink-start and immediate-start trunks and Communication Manager signaling. Throughout this section, the term DS1 applies to DS1 Interface Media Module. For more information, see one of the following maintenance objects:
Media Module
Maintenance object
DS1 Interface Media Module
MG-DS1
Not all tests are applicable to media modules. These tests will abort with error code 1412. This error can be ignored.
Two trunk service states are specified in the DID-DS1 trunk maintenance:
out-of-service
The trunk is in a deactivated state and cannot be used for incoming calls.
in-service
The trunk is in an activated state and can be used for incoming calls.
If a DS1 is out-of-service, every trunk on the media module is put into the out-of-service state, and a warning alarm is raised.