Emergency Calling Update: Check if Your Device Can Still Call Triple Zero After November 2025
By: Riza
Posted: 05 Nov 2025•4 min read
Last Updated: 26 Feb 2026
At Yomojo, your safety always comes first.
In line with Australian Emergency Call Service Regulations, our network provider has identified a small number of older mobile devices that will no longer be able to make Triple Zero emergency calls after 24 November 2025.
This industry-wide update affects all Australian mobile networks and ensures that every device can connect to emergency services, even if your regular network is temporarily unavailable.
1. What’s Changing and Why It Matters
When you call Triple Zero , your phone must automatically connect to any available mobile network—Telstra, Optus, or Vodafone—so you can reach emergency services even if your main network is down.
Unfortunately, a small number of older devices cannot switch (or “camp-on”) to an alternate network, meaning they won’t be able to make emergency calls when needed.
To comply with Australian Communications and Media Authority (ACMA) regulations, these devices will be blocked from connecting to the Yomojo network from 24 November 2025.
2. What Happens If You’re Affected
If your device is incompatible, it will no longer be able to:
Make or receive mobile calls (including Triple Zero)
Send or receive SMS messages
Use mobile data
You’ll still be able to connect to Wi-Fi for internet browsing and email but calls and texts won’t function on the mobile network after the update.
3. Which Devices Are Impacted
Based on the information provided by our wholesale network partner, the following Samsung models are among those identified as non-compliant with emergency call requirements and will need to be replaced:
Model No. | Device Name |
|---|---|
SM-A720F SM-A520F SM-J120ZN SM-J320ZN SM-J530Y SM-N920I SM-G920I SM-G925I SM-G928I SM-G930F SM-G935F | Galaxy A7 (2017) Galaxy A5 (2017) Galaxy J1 (2016) Galaxy J3 (2016) Galaxy J5 (2017) Galaxy Note 5 Galaxy S6 Galaxy S6 Edge Galaxy S6 Edge+ Galaxy S7 Galaxy S7 Edge |
Note: Most recent Samsung and other smartphone models are not affected by this update.
To check if your device is compliant, please use the Optus Device Checker.
4. How to Check if Your Device Is Affected
If you’re unsure whether your phone will continue to work on the Yomojo network after 24 November 2025, you can easily check using the steps below.
Wait for a Yomojo Notification
We’ll contact all affected customers by email or SMS. If you don’t receive a message from Yomojo, your device is not impacted.
5. What You Should Do Next
If you are affected, there is no software fix available.
To stay connected:
Purchase a replacement phone before 24 November 2025.
Transfer your existing Yomojo SIM card into the new device or use the Yomojo App to request an eSIM.
Your mobile service will continue as normal once activated on a compatible device.
If you don’t replace your phone by the deadline, it will lose access to calls, texts, and data—including emergency services.
6. Why This Is Happening
This update is a legal and technical requirement affecting all Australian carriers.
It ensures that every customer can contact Triple Zero from anywhere in the country, even if one or more networks are temporarily unavailable.
Some older devices simply lack the firmware and network-switching capability needed to meet this standard.
Blocking these models helps guarantee that all phones on the Yomojo network remain safe and compliant.
7. How Yomojo Is Supporting You
We understand this change may be inconvenient, especially if your current device has served you well.
That’s why Yomojo is:
Notifying all affected customers well in advance.
Providing clear guidance to help you check your device compatibility.
Offering an eSIM option for a quick and easy upgrade process.
Ensuring our mobile network continues to meet Australian emergency call standards.
Providing a $75 credit to help offset the cost of upgrading your device.
8. Key Dates to Remember
Action | Deadline | Notes(per 30 days) |
|---|---|---|
Replace incompatible phones | Before 24 November 2025 | No fix available for older models |
Insert SIM or request eSIM | After replacement | Continue using your same mobile plan |
Confirm Triple Zero connectivity | Ongoing | Ensure new device passes compliance |
9. Questions You May Have
Can I update my phone software to fix this issue?
In most cases, no. The limitation is hardware-related, not software-related.
Can I still use Wi-Fi on my old phone?
Yes. You’ll still be able to use Wi-Fi for browsing or email, but you cannot make calls or send SMS, including Triple Zero.
Does this affect all Yomojo customers?
No. Only a very small number of customers with older devices are affected.
Will Yomojo help me transfer my service to a new phone?
Yes. You can easily move your SIM or activate a new eSIM through the Yomojo App or our support team.
10. Staying Connected and Safe with Yomojo
Yomojo remains committed to providing secure, reliable mobile services that keep Australians connected — especially during emergencies.
We encourage all affected customers to check their device compatibility as soon as possible and take steps to stay compliant with emergency calling requirements.
If you need assistance, our support team is here to help.
Yomojo Support: https://www.yomojo.com.au/support
Email: support@yomojo.com.au
Authoritative Disclosure
This information is provided by Yomojo, in compliance with the ACMA Emergency Call Services Determination (ECSD) and Australian Telecommunications regulations.