Nortel BCM 3.7, Manual

Page: 215 / 1004

Programming line access 215
Programming Operations Guide
• Even when you use line pools, it is possible that a line pool will be unavailable for outgoing
traffic. To alleviate this, you can determine overflow paths for any routes that you designate.
Refer to
“Using multiple routes and overflow routing” on page 348 for more information
about overflow routing.
• Incoming lines can be assigned to telephones as individual lines or through target lines,
depending on the type of trunk supplied from the central office (CO). Incoming lines do not
need to have an appearance on the telephone. Target lines are for incoming calls only.
Two-way single lines, such as analog lines, allow the user to make an outgoing call by
pressing the (idle) assigned line button or, if the line is part of a line pool, by entering a line
pool access code or destination code to access the line pool. These lines can also be redirected
on a per-trunk basis or from the telephone by using
FEATURE 84.
• PRI lines are always configured into line pools. These lines require a destination code for
outgoing calls. Incoming calls use target line assignments.
• Voice over IP (VoIP) trunks use the data network to provide line service in and out of the
system. VoIP trunk configuration is described in the
IP Telephony Configuration Guide . VoIP
trunks use target lines for incoming calls, and require line pool codes or destination codes for
outgoing calls.
• You can assign a line a maximum of 93 times.
Programming :
• Creating dialing plans: “Configuring the public and private dialing plans” on page
312
• Setting up the modules for the trunks: “Defining trunk module types and settings” on
page 142
• Creating restriction filters: “Defining restriction filters” on page 356 .
• Creating line pools and redirecting lines: “Assigning Trunk/line data” on page 248 .
• Creating line pool codes: “Setting up line pool access codes” on page 328 .
• Creating routes and destination codes: “Configuring call routing” on page 331 .
• Creating scheduling for routes, ringing groups and restrictions: “Configuring
schedules” on page 489 .
• Assigning lines and line pools to telephones: “Assigning lines to telephones” on
page 410 , “Assigning line pool access” on page 414 .