Alert Ready Frequently Asked Questions

Alert Ready

Who sends emergency alerts?

Federal, provincial, and territorial governments are responsible for issuing emergency alerts. Federally, emergency alerts are issued most frequently by Environment and Climate Change Canada. Each provincial or territorial government decides who will have the authority to issue alerts with  their jurisdictions. Emergency alerts could be issued by provincial or territorial management offices or in some cases by municipal emergency management offices or local police and fire departments. Koodo and other carriers broadcast emergency alerts received from alerting authorities directly to compatible wireless devices connected to LTE networks.

What types of emergency alerts are issued by Alert Ready?

The Alert Ready system allows alerting authorities from federal, provincial and territorial governments to issue a wide range of public safety messages. However, Koodo and other carriers will only receive and relay messages that are issued for THREAT-TO-LIFE situations. Government officials developed a specific list of alert types that are considered a threat-to-life and should be broadcasted immediately. These “Broadcast Immediately” emergency alerts have the highest level of severity, urgency and certainty. For a full list, visit the Alert Types section of the website.

Will emergency alerts be for my specific area?

Yes. The alerting authority determines which areas are affected by an incident, weather or environmental situation, and uses a standard system that will typically correspond with municipal, regional or provincial boundaries. Emergency alerts intended for wireless devices are issued to a defined geographical area, which can be as small as a few blocks, so that only people in the defined area receive the emergency alerts within seconds of being issued, provided the devices are powered on and connected to the LTE cellular network.

Are the emergency alerts sent as a text message?

No. While the emergency alert may look like a text, it is not a text message. Emergency alerts are sent by Cell Broadcast distribution. This is a mobile technology that allows messages to be broadcast to all compatible wireless devices within a specified area. Call Broadcast is a similar to radio broadcast. Radio towers broadcast music to people in defined geographic areas providing the individuals can pick up the broadcast signal and have their radios turned on. Similarly, Cell broadcast messages are delivered simultaneously to those compatible wireless devices that are in range of cell towers and antenna in the designated area.

When should I expect to get a test alert? Are they scheduled in advance?

Testing of the emergency alert system is scheduled in advance. The test schedule for your specific province or territory can be found on

Receiving Wireless Public Alerts

Will I receive an emergency alert if my device is connected to Wi-Fi?

While on Wi-Fi, if the compatible device can still communicate with the LTE cellular network, it will receive emergency alerts. If the wireless device is not within reach of the LTE cellular network (or is set to Wi-Fi only) it will not receive an emergency alert.

Will I be charged if I receive an emergency alert on my wireless device if I don’t have unlimited texting or data?

Wireless alerts are sent on a specific cellular channel that is separate from normal text and data traffic. Although the alerts may look like text messages, they are not, and are also not billed like text messages. They also do not count towards data use.

Can I opt out of receiving emergency alerts on my wireless device?

No. Emergency alerts are relevant to you and require immediate attention, government regulations mandate that all compatible wireless devices receive all relevant alerts. Unlike radio and television broadcasts which cover a vast area, wireless public alerting is geo-targeted and can be very specific to a limited area. As a result, if you receive a wireless emergency then the area you are located is in immediate danger.

Will I receive emergency alerts on my wireless device if I’m travelling to or from another province?

Yes. Emergency alerts are issued to a defined geographic area, such that only people in the defined area will receive the emergency alerts. If you are travelling and happen to be in another province when the emergency alert is issued, provided your phone is powered on and connected to the LTE cellular network.

Will I receive emergency alerts on my phone relevant to where I live while I'm traveling away from home?

No. if you’re travelling you will only receive emergency alerts that occur where you are. Canadians can keep track of emergency alerts occurring in specific areas (e.g. where they or family members live) through a number of available apps and online services.

Will I still receive emergency alerts if wireless device towers are affected by the situation?

Emergency alerts are broadcast from cellular towers and antennas within the area specified by the alert issuer. Compatible wireless devices connected to the specified towers/antennas will receive the emergency alert. The towers/antennas therefore must be operational to send emergency alerts. If you are in an affected area but your wireless device is unable to connect to any towers/antennas because of the situation, you will not receive the emergency alert on your wireless device.

Will emergency alerts interrupt or end a voice-call or another activity in progress?

Emergency alerts will not end a voice call or data session in progress. If you are on a VoLTE call when the emergency alert is received, you will hear an alert tone, similar to call waiting.  The alert will be displayed on your device, after your call has ended. If you are on a call while connected to the 3G network, you will not receive the alert while you are on the call. You will receive the emergency alert after your call has ended, if it the alert is still active and your device is connected to the LTE network. If you are using data, the emergency alert will briefly interrupt your data session by the emergency alert appearing on your screen, but your data session will continue.

Will I receive an emergency alert if my wireless device is off or set to silent?

A compatible wireless device that is turned off, or is in Airplane Mode, will not display an emergency alert. If the emergency alert is still active when the wireless device is powered on or out of Airplane Mode, and the user is still in the alert area, the wireless device will then display the alert. A compatible wireless device that is set to silent will display an emergency alert, but you might not hear the emergency alert sound. The emergency alert sound will usually play at whatever the current volume setting is on the wireless device, so if your wireless device is set to silent, no sound will accompany the emergency alert message. However, this behaviour can differ depending on your wireless device and in some instances the alert sound may override your user settings. Please consult your device manufacturer for more device-specific information.

If my wireless device is off for an extended period, will the emergency alert appear once I turn it back on?

If the emergency alert is still active when the compatible wireless device is turned on, and you are within the emergency alert area, the emergency alert will be displayed.  If the emergency alert is no longer active or if you have travelled outside of the alert area, it will not be displayed.

Can alerts be saved on my device?

Some smartphones allow you to save and retrieve emergency alerts received on your device after you acknowledge the alert. For more information and to find out if your device is capable of saving an emergency alert we recommend that you contact your device manufacturer.

Will alerts sent to my wireless device be used to gather data about me?

No. Emergency alerts are sent using Cell Broadcast distribution. Cell Broadcast can only transmit information to your wireless device. This means that no data is being gathered about you, your wireless device or your location when emergency alerts are sent out.

Why do some emergency alerts display with a banner that says “Presidential Alert”?

Wireless public alerts in Canada follow the Canadian common look and feel guidance. The agreed upon term for emergency alerts in this guidance is “EMERGENCY ALERT / ALERTE D’URGENCE”. The equivalent term as per the American standard is “Presidential Alert”. Devices pre-dating the Canadian name alignment, as well as phones purchased outside of Canada or manufactured to be compatible with the U.S. Wireless Emergency Alerts system, will display “Presidential Alert”, or another non-Canadian headline banner.

Why am I receiving repeat alerts?

In most cases, you should only receive an alert once. However, if you think you are receiving the same alert more than once it could be due to one of the following reasons:
1. The device is power cycled and the alert is still active on the network when the device is powered back on. In this case, the alert will be displayed again due to the device cache being cleared.
2. Your phone connection to the network is alternating back and forth from one of our cell sites to one of our partner’s cell sites (i.e. TELUS and Bell)
3. You have the alert reminder settings on your phone turned on. Please check your device manual to learn how to change the alert reminder settings.

Device Compatibility

Will all devices receive emergency alerts?

No. In order for emergency alerts to be received on a wireless device three conditions must be met. The wireless device must be:
i. An LTE-device (LTE is commonly referred to as “4G LTE”);
ii. Wireless public alerting (WPA)-compatible list of WPA compatible smartphones; and
iii. Connected to an LTE cellular network at the time the emergency alert is issued, or joins the network while the alert is still active.

What does it mean for a device to be WPA-compatible?

A wireless device that is WPA-compatible is (1) an LTE-device, that (2) has special software embedded in it that allows for the alert message to be received in the standard Alert Ready format (look, sound and vibration). The common Alert Ready format ensures the alert is recognizable and provides confirmation that it is issued by a legitimate source. Here is a list of all WPA compatible smartphones that are currently offered in the Koodo mobility shop.  

Are other mobile devices (e.g. tablets) capable of receiving emergency alerts?

Koodo and other carriers are required to distribute emergency alerts via the LTE networks to compatible smartphones. Additional wireless devices – such as tablets and wearable accessories (e.g. smartwatches) – may be capable, from a technical perspective, to receive some form of the message, but it will not necessarily be received on the device in the common Alert Ready format.

Will alerts be received on devices bought from non-Canadian carrier that support Cell Broadcasts?

Koodo can only guarantee WPA compatibility for devices that are testing and certified by Koodo and are sold through Koodo. For a comprehensive list check out the Koodo device compatibility list available here. Devices from non-Canadian carriers MAY work, but Koodo cannot comment on how the alerts will be rendered.

Will alerts be received correctly on older device models not listed on the device compatibility list?

Koodo can only guarantee WPA compatibility for devices listed here. Older device models might not have WPA functionality enabled by the device manufacturer. For more information, you can contact your device manufacturer.

I thought my device was compatible but I didn’t receive a test alert. What should I do?

It is important that you first verify that you did not receive an alert by checking your device’s “notification” folder. In some instances you might not see or notice the alert even though your device has received it. The alert might be “hidden” with other notifications.
If you didn’t receive an alert on your device it is important to do several things, including checking the phone’s WPA compatibility, as well as ensuring that you have updated the software. There are many factors that will impact your ability to receive the alert including your location, or whether you are connected to the LTE network at the time of the alert distribution.

Taking action

What should I do if i receive a test alert on my wireless device?

Test alert messages will be identified as such. These messages are intended to “test” the functionality of the system, and inform people of wireless emergency alerts. They do not require people to take any steps to secure their safety.
You might be asked to acknowledge the receipt of the emergency alert in order to allow for your wireless device to resume normal functioning. In the event that you cannot acknowledge the alert, the alert sound and vibration will continue for 8 seconds. Depending on your specific wireless device you might get additional reminders.

What should I do if I receive an emergency alert on my wireless device?

Upon receiving the emergency alert it is important to take action safely. Stop what you are doing when it is safe to do so and read the emergency alert. Government officials will include, within the emergency alert, the information you need for any action you need to take. This could include but is not limited to: limit unnecessary travel, evacuate the areas, seek shelter, etc.  

What should I do if I receive an emergency alert on my wireless device while driving?

It is important to take action safely, especially if the emergency alert is received while operating a vehicle. If you are driving, it is important to remain calm and pull over at your earliest opportunity to view the emergency alert. Some connected Bluetooth car stereos will play and magnify the alert sound. Make sure you do not panic and take action safely.  

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