There will be another test of the national public alerting system next week.
It will happen on Wednesday, November 28 at 1:55 p.m. local time.
The Alert Ready test will go out over radio, TV and wireless networks to further assess and refine the system.
The first test over wireless networks happened in May.
Public Safety and Emergency Preparedness Canada says technical issues during that test have since been addressed.
Since April 2018, more than 100 emergency wireless alerts have been successfully issued across the country.
The system was most recently used September 21 to warn residents about tornadoes the Ottawa/Gatineau area.
For a variety of reasons, not everyone will receive the test alert.
You can visit Alert Ready for more information on your device's compatibility, and for steps you can take to make sure you receive the alert if your phone is compatible.