Obtaining Telephone Company Information - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Obtaining Telephone Company Information

Obtaining Telephone Company
Information
To fill out many of the forms, especially forms involving incoming lines/trunks,
you will need to obtain information from the local telephone company. Before
you speak with the local telephone company, make sure you understand your
customer's company requirements regarding the communications system.
Some of the information you will need to know includes:
Which incoming line/trunk is connected to each channel on each 100D
module, and the order in which the lines/trunks are assigned
The Service Profile Identifier (SPID) and Directory Number (DN)
associated with each channel on each 800 NI-BRI module.
Whether the disconnect signals for loop-start lines/trunks are reliable or
unreliable, and what the length of the Hold disconnect interval is
Information the local telephone company will be able to provide includes:
Detailed T1 parameters
Detailed NI-1 BRI parameters
The number of digits sent on DID trunks
Which lines/trunks, if any, require a toll-call prefix
The telephone number for each incoming line/trunk
The type(s) of incoming lines/trunks (loop-start, ground-start, and so on)
Which lines/trunks, if any, are rotary-dial lines/trunks
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Before You Begin