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Hearing Impaired Access to 9-1-1 Service


The deaf can employ a common medium to communicate, known as TDD/TTY (Telecommunication Device for the Deaf / Teletypewriter).

Every Call-taker position in Prince Edward Island’s 9-1-1 system is equipped with TDD/TTY capability to facilitate communication with a deaf individual who is using this telecommunications technology.

The 911 Administration Office recently collaborated with the Prince Edward Island Chapter of the Canadian Hard of Hearing Association (CHHA) to develop Guidelines for Making a 9-1-1 Call, for Individuals Who are Hard of Hearing.

The 9-1-1 data base, which is maintained in confidence by Aliant Telecom, provides a relationship between a telephone number, a civic address, and a geographic area which is served by a particular set of Emergency Responders. This data base applies to hardwired telephones only and is used to automatically display this important information to a 911 Call-taker.

There is a special provision in this data base whereby a “flag” can be assigned to the telephone number of a subscriber who has a hearing impairment. When this flag is in place and that phone is used to contact 9-1-1, the screen would indicate a “DEAF” telephone service designation, along with the warning message “Possible TDD User.” These displays are standards as used in North America, and which also meets the National Emergency Number Association’s recommendations.

In order to have a “DEAF” designation included in the 9-1-1 data base, you must contact your wireline telephone service provider, as follows:


Aliant 1-800-565-4737
Eastlink 1-888-345-1111
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