Specifications

Dialing Plan
6 – 4 ShoreTel, Inc.
Step 1 Click Increase Extension Length.
Step 2 Specify 3, 4, or 5 digits for the increased length.
NOTE After applying your edits, you cannot decrease an extension
length. For example, once it is increased to 4, the minimum
is 4.
NOTE If your system uses three-digit extensions, ShoreTel
recommends that you do not assign x11 extensions to users.
Configuring External Numbers
The ShoreTel 6.1 system supports 1-, 2-, and 3-digit trunk access codes. When an
access code is dialed, the system looks for a valid digit in the parameters.
If an invalid number is dialed, the system plays a recording to the calling party.
There are several types of valid telephone numbers, which are described in the
following sections.
The ShoreTel 6.1 system allows the system administrator to provide users at each site
with a unique dialing plan to match the dialing plan of the site’s geographic region. The
ShoreTel 6.1 system supports 7-digit local dialing, 10-digit local dialing, and mixed
local dialing.
External numbers are converted into a standard “canonical format” by call control
software to provide a globally consistent way of handling phone numbers. The
canonical format starts with a “+” representing the international designation, followed
by the country code, area code, and subscriber number.
• External numbers that can be converted into canonical format are considered
“routable” and will leverage the network call routing feature of the call control
software.
• External numbers that are unique to the country (n11, 911, and so on) are
considered “unroutable” and will not leverage the network call routing software.
These calls will be placed from the local site or the associated proxy site.
Configuring 7-Digit Local Dialing
The Local Area Code on the Site edit page, shown in Figure 6-2, defines 7-digit dialing
for all users at the site. When a user dials an access code followed by 7 digits, the
switching software assumes the site local area has been dialed. The switching software
then converts the 7-digit number into canonical format before checking call
permissions and doing network call routing.