Chapter 6: Dialing Plan On-Net Dialing
ShoreTel 8 Planning and Installation Guide 77
user extension - typically 4 digits in length; acts as the number you would dial to
reach other users in your organization
By dividing phone numbers into two parts, the OND feature provides customers with a
more seamless method of migrating from their legacy phone systems to the newer ShoreTel
system. OND allows customers to preserve their existing dialing plans when integrating
ShoreTel equipment with their legacy equipment. While previous releases allowed
customers to integrate ShoreTel equipment with their legacy PBX, the configurations
needed to maintain the customer's existing dialing plan were complex and the complexity
increased with the number of people and extensions involved.
Option Description Example
Remove leading 1 from
1+10D
This option is required by some long-distance service
providers that only accept numbers dialed as 10 digits.
AT&T typically only
supports 10-digit dialing.
Remove leading 1 for
Local Area Codes
This option is required by some local service providers
that have mixed 10-digit and 1+10 digit dialing in the
same area code. Local Area Codes include both the Local
Area Code and Additional Local Area Codes configured
against the trunk group.
Atlanta has three local area
codes that must be dialed as
10 digits.
This could also be called
“Dial 10 digits for Local
Area Codes.”
Dial 7 digits for Local
Area Code
This option is required by some local service providers
that have mixed 10-digit and 1+10 digit dialing in the
same area code.
Massachusetts and Maine.
Prepend this Dial Out
Prefix
The Dial Out Prefix is prepended to the number. This
feature is typically used when connecting the ShoreTel 8
system to a legacy PBX system using a ShoreGear voice
switch. The Dial Out Prefix enables the ShoreTel 8
system to seize a trunk on the legacy PBX. The Dial Out
Prefix is not applied to Off-System Extensions.
Not applicable.
Vertical Service Codes If a Vertical Service Code was dialed, digit manipulation
rules do not apply.
Vertical Service Codes work with ISDN PRI trunks and
some loop-start trunks.
With PRI trunks, Vertical Service Codes for Caller ID
Blocking control will be converted to D-Channel
messages.
With loop-start trunks, the service provider must be
able to accept the outpulsed digits with only 50 msecs
of pause between each digit, including the service
codes.
Vertical Service Codes are typically not supported by
service providers on wink-start trunks. If you have
outbound access on wink-start trunks and you dial a
vertical service code, you will likely get an error message
from the service provider.
Not applicable.
Off System Extensions Off System Extensions define ranges of extensions that
when dialed will be routed out of this trunk group. This is
typically used to interface to a legacy PBX system using a
T1 or E1 circuit provided by a ShoreGear voice switch.
Off-system extensions digits can be manipulated using a
translation table.
Digit manipulation, including the Dial Out Prefix, will
not be applied to these calls.
Not applicable.
Table 6-3 Digit Manipulation Options
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