ITSS

Telephone Extensions

All Saint Mary's phone numbers use extensions, or four-digit numbers, so that you only have to dial the extension when calling from a campus phone. For example, the ITSS Help Desk can be reached from a campus phone by dialing 8111. If you are calling from off-campus, however, you will have to dial more than just the extension.

2000 extensions cannot be reached from outside the University. These numbers can only be reached by calling the department secretary or the University's Switchboard at 420-5400.

3000 and 4000 extensions can be reached from outside the University by dialing 491-8668 and following the prompts.

5000 extensions can be reached from outside the University by using a 420 prefix (eg. 420-5678).

6000 extensions can be reached from outside the University by using a 491 prefix (eg. 491-6789).

8100–8299 extensions can be reached from outside the University by using a 496 prefix (eg. 496-7890).

8600–8699 extensions can be reached from outside the University by using a 491 prefix (eg. 491-5309).

8700–8799 extensions can be reached from outside the University by using a 496 prefix (eg. 496-7890).