How to fix T-Mobile Wi-Fi calling issues on P5?

Recently, we have received feedback that the Wi-Fi calling cannot work normally when the Phone connects to P5's network.
Here is a beta firmware that may solve the issue temporarily.

How to process?


Step 1: Access the web management page and upgrade the beta firmware below.
How to log into the web interface of Cudy Router?-Cudy: WiFi, 4G, and 5G Equipments and Solutions
P5-R21-1.15.15-20230616-112055-sysupgrade


Step 2: Go to General Settings->Cellular->APN. You can see a 'T-Mobile wifi-calling' button, choose 'ON', then Save & Apply.


Step 3: Reboot the P5 and the phone at the same time, then check if the Wi-Fi calling works or not.

Any feedback would be appreciated!

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6 comments

Dear Jaret, Please contact us via email. Here is the email address. supportcudy.com
“I was experiencing the Tmobile wifi calling and I fixed it with a few AT commands and also updating the firmware. That said, it stopped working a few weeks ago and nothing I try works. I also tried to set tmobile wifi calling to on and it is not working”

Support

I was experiencing the Tmobile wifi calling and I fixed it with a few AT commands and also updating the firmware. That said, it stopped working a few weeks ago and nothing I try works. I also tried to set tmobile wifi calling to on and it is not working

Jaret

@Dear Tiago,
Our technical support has contacted you via email. Please check.

“Hi,
This still did not fix the issue for me.
T-Mobile wifi-calling is set to ‘ON’. Firmware version is 2.3.13-20250401-112031
Help would be appreciated.”

Support

Hi,
This still did not fix the issue for me.
T-Mobile wifi-calling is set to ‘ON’. Firmware version is 2.3.13-20250401-112031

Help would be appreciated.

Tiago

@tian
不好意思,国内并未销售P5.

“P5国内哪里可以买到”

Support Cudy

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