my cell phone can not dial out or receive a call, but it can send out and receive text messages

[wangjun]

It was estimated more than one week that my cell phone can not dial out or receive a call, but it can send out and receive text messages, I switched my sim card to my wife's cell phone for a test, my sim card on my wife's cell phone works without any problem. My current subscription plan is "25$ monthly,3G speed, 1GB data",

[wangjun]

After yesterday public mobile agent made some changes on their side, beside the public mobile icon on my phone there are LTE characters showing up, I think it was connecting 4G, but it still can not dial out or receive a call, sending and receiving text messages are still ok, I received several voice message notification call from 1-647-580-4001 , but when I dialed this number to listen to the voice messages, it failed to dial in. Last night, I also switched my wife's sim card to my cell phone for a test, it was still not working, my wife's cell phone is Google Pixel 7 and installed sim card of public mobile two years ago.

FYI, I also did a research on my phone(huawei p40 lite , model No.: JNY-LX1, OS: EMUI 12.0.0.295(C432E5R6P2)), VoLTE is defaulted enabled, for 4G/LTE the bands in the list below are supported, but my phone is not in the below list of devices certified for VoLTE on Public Mobile. Is this the cause of my problem?

LTE: b1 (2100), b2 (1900), b3 (1800), b4 (1700), b5 (850), b6 (800), b7 (2600), b8 (900), b12 (700), b17 (700), b18 (800), b19 (800), b20 (800), b26 (850), b28 (700), b34 (2000), b38 (2600), b39 (1900), b40 (2300), b41 (2500), b66 (1700 MHz)

Certified VoLTE devices compatible with Public Mobile
Not all VoLTE-capable phones are certified across all service providers. For a list of devices certified for VoLTE on Public Mobile, refer to the official list below.
Apple iPhone 8 & above (iOS 16 & above)
Google Pixel 4/4XL/4a/4a 5G (TP1A.220624.014 & above)
Google Pixel 5 (TP1A.220624.014 & above)
Google Pixel 6a (TP1A.220624.021.A1 & above)
Google Pixel 6/6 Pro (TP1A.220624.021 & above)
Google Pixel 7/7 Pro (TD1A.220804.009.A2 & above)
Samsung S23 (AVK2 & above)
Samsung S22/S22+/S22 Ultra (CWAI & above)
Samsung Galaxy Z Flip4 & Fold4 (CWAC & above)
Samsung Galaxy Z Flip3 5G & Fold3 5G (FWB1 & above)
Samsung Galaxy Z Flip 5G (HWB1 & above)
Samsung Galaxy Z Fold2 5G (JWB5 & above)
Samsung Note20 5G/Ultra 5G (HWB3& above)

[wangjun]

 My phone is huawei p40 lite, it was bought for a couple of years and had been working fine for several years till recently, actually I didn't find the volte option from my phone, someone online said I need upgrade to 4G, then the volte option would be shown up, so yesterday I was trying to change my subscription from 25$ monthly,3G speed, 1GB data to 25$ monthly, 4G speed, 10GB data, but when I selected Change now option and pressed the deduct money button, it always showed " Sorry, we're not able to process your payment at this time. Please try again later."; When I selected the Change on Renewal option and pressed confirm change button, it was showing "loading" till my session was timed out, can you please help me do this subcsription plan change? Thanks

[computergeek541]

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@wangjun wrote:

It was estimated more than one week that my cell phone can not dial out or receive a call, but it can send out and receive text messages, I switched my sim card to my wife's cell phone for a test, my sim card on my wife's cell phone works without any problem. My current subscription plan is "25$ monthly,3G speed, 1GB data",

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Which phone model do you have?  I suspect that this could be result of changes to the 3G network.  In some areas, you'll need band 2 (1900MHz) to use the 3G network.  If you're phone isn't capable of connecting to that network and if your phone doesn't have VoLTE, there won't be any voice service.  I suspect that you're wife's cell phone might be using VoLTE for phone calls.