Specifications

Configuring Trunks
ShoreTel 7.5 Administration Guide 7 – 9
Trunk Digit
Manipulation
This parameter lets you control how the trunk group
manipulates the telephone number before outpulsing the
digits to the central office.
Remember that all North American numbers are converted
into 1+10-digit format internally before being passed to the
trunk group for digit manipulation.
• Remove leading 1 from 1+10D—Click this check box to
drop the leading “1”. Dialing only ten digits is required by
some long-distance service providers.
• Remove leading 1 for Local Area Codes (for all prefixes
unless a specific local prefix list is provided below)—Click
this check box to drop the leading “1” for the local area
codes (Local and Additional Local). Dialing only ten digits
for local area codes, particularly with overlay area codes, is
required by some local service providers. If a local prefix
list provided, the leading “1” is removed for the all entries
in the list.
• Dial 7 digits for Local Area Code (for all prefixes unless a
specific local prefix list is provided below)—Click this
check box to enable the trunk to dial local numbers in the
local area code with seven digits. This is required by some
local service providers.
If a local prefix list provided, seven digits are dialed for all
entries in the list (Local Area Code only, not Additional
Local Area Codes).
Local
Prefixes
Click the Go to Local Prefixes List link to view, add, and edit
the local prefixes for your sites. When you are using a local
prefix list, all prefixes not listed are considered “long distance”
and calls to these numbers require a long distance trunk
service.
You can import local prefixes from a CSV file. For more
information, see “Importing Local Prefixes” on page 7-10.
Prepend this Dial
Out
Prefix
Select a prefix from the drop-down list. It will be pre-pended
to the dial-out string resulting from the other rules. A dial-out
prefix is typically required when connecting to, and leveraging
the trunks on, a legacy PBX.
NOTE The Dial Out Prefix is not applied to Off-System
Extension calls.
Off-System
Extensions
Click Edit to add or edit any ranges of extensions that can be
accessed through this trunk group. This is typically used when
setting up a tie trunk to a legacy PBX and configuring
coordinated extension dialing. See also “Creating AMIS
Systems” on page 11-6.
NOTE The Dial Out Prefix and Digit Manipulation rules are
not applied to Off-System Extensions.