Aastra 9143i User Manual page 52

The following table describes the default emergency numbers on the IP phones.
Emergency
Number
911
999
112
110
You can set the emergency dial plan using the Aastra Web UI.
Define an Emergency Dial Plan
Use the following procedure to specify the numbers to use on your phone for dialing emergency
services in your area.
1. Click on Operation->Phone Lock.
2. In the "Emergency Dial Plan" field, enter the 3-digit number used in your local area to
contact emergency services. For multiple numbers, enter a "|" between each emergency
number. For example:
911|110
Default for this field is 911|999|112|110.
3. Click Save Settings to save the emergency dial plan to your phone.
Reference
For more advanced options you can set on your phone, see
46
Description
A United States emergency number
A United Kingdom emergency number
An international emergency telephone number for GSM mobile phone
networks.
In all European Union countries it is also the emergency telephone number
for both mobile and fixed-line telephones.
A police and/or fire emergency number in Asia, Europe, Middle East, and
South America.
Aastra Web UI
"Additional Features"
Model 9143i IP Phone User Guide
on page 150.