Features and Specifications Manual G - 3
Ground Start Trunks
G-2
FEATURE
DESCRIPTION
Ground Start Trunks can be connected to the system. Assignment of trunks as
Ground Start is per trunk (by switch settings) at the associated COI(8)-U10
or COIB(4)-U10 ETU. Ground and Loop Start Trunks can be mixed in the
system per trunk. Ground Start Trunks are provided with line supervision to
reduce call collisions.
SYSTEM
AVAILABILITY
Terminal Type:
Not applicable
Required Components:
COI(8)-U10 or COIB(4)-U10 ETU to interface Ground Start Trunks to the
system
OPERATING
PROCEDURES
SERVICE
CONDITIONS
Data Assignment:
Use Memory Block 7-1 (Card Interface Slot Assignment) to specify the
COI(8)-U10 or COIB(4)-U10 ETU.
Restrictions:
Ground Start Trunks do not support Caller ID.
General:
Each COI(8)-U10 ETU has eight switches (one for each port) that can be
used to select either Loop or Ground Start per trunk.
Each COIB(4)-U10 ETU has four switches (one for each port) that can
be used to select either Loop or Ground Start per trunk.
When the serving CO sends a disconnect signal, after the outside party
abandons a call, the trunk is automatically released.
None
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