Mitel 6867i Premium, Administrator'S Manual

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Mitel 6800 Series SIP Phone Release 4.2.0 Administrator Guide
5-15
When a line is seized and a number is dialed or when a Speeddial key is pressed, if the phone
is locked, the number is matched against the emergency dial plan. If it matches the dial plan,
the call will go through. If the number does not match the dial plan, the call will be blocked.
PREFIX DIALING
The IP phones also support a prefix dialing feature for outgoing emergency calls.
If the dialed number matches against the emergency dial plan, the phone automatically maps
the pre-configured prepended digit in the configuration to the beginning of the dialed number.
You can enable this feature by adding prepend digits to the end of the
Emergency Dial Plan
parameter string in the configuration files or the Mitel Web UI at
Operation->Phone Lock
.
For example, if you specify the emergency dial plan with a prepend map of “911,9”, if the user
dials the number "911", the IP phone will add the digit “9” before the "911’.
CONSIDERATIONS
• A secondary dial tone is not supported when defining an emergency dial plan.
• When the live dialpad feature is enabled and a user dials a number using a Speeddial key,
the whole string is examined against the dial plan. The speeddial number will only be dialed
if the number matches the rules of the dial plan exactly (i.e. if the speeddial is an exact
match, the call will go through; if the speeddial number is a candidate for a match but has
less or more digits than the defined dial plan, the call will be blocked. For example, if the
dial plan is defined as "9XXXX" and the speeddial number is "91234", the call will go through.
If the speeddial number is "9123" or "912345", the call will be blocked as the speeddial
number does not contain 5 digits.
CONFIGURING AN EMERGENCY DIAL PLAN
Use the following procedures to specify the numbers to use on your phone for dialing emergency
services in your area.
For specific parameters you can set in the configuration files, see Appendix A, the section,
“Emergency Dial Plan Settings”
on
page A-17
.
Note:
If the phone is unlocked, dialed numbers are matched against the local dial plan.
For more information on configuring a local dial plan, see “Local Dial Plan” on page 67.
CONFIGURATION FILES