It very depend on what you need on the home alarm system.

All alarm system these day are able to connect to phone, remote arm and disarm by phone and some are able to perform simple home automation integration.
important, go speak to few alarm supplier, then you will know what kind of system and service that best suitable to you environment.

For example, this is one of the well known alarm from Canada. Important, speak to at least 2 or 3 supplier.

well known Canada made home alarm system