Airtel 4g not getting sms OTP with Vowifi

[Tejas01]

So I recently changed my device to Moto Edge 20 Fusion and vowifi is rock solid on Airtel. I also get vowifi with airplane mode.
Seems like it is more to do with the OS and the modem config files used by manufacturers. My earlier device was Poco X3 and vowifi was never stable, won't get it on airplane mode too. My Dad too has stock Android and I have seen vowifi pretty stable.

Miui updates seem to be very bad as they seem to screw the network quality and other network related services.

 

[pillaicha]

Chinese companies are a hit or miss with software updates. My Oppo phone has never received Vowifi support. And after an update last year, permissions for apps like microphone and camera get disabled every reboot.

 

[opomiyulen]

stay away from miui and in case u have any xiaomi phone just keep it on out of box software. They made, even stock android shit on mi a2 and a2 lite.

 

[Tejas01]

+1 for above statement. If anyone's on any of their non-pro models or non-note series, it would be best to stay away from the so-called "updates." Pathetic would be an understatement.

 

[Sushubh]

dad's Redmi note 7 and mom's honor 9 lite both had stable vowifi. mom's new realme 9 pro also seem to have pretty great vowifi support out of the box.

 

[Tejas01]

Yeah, forgot to add Note series is also a premium for Redmi.

 

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[MeanMachine]

@Tejas01 I also have a similar experience. Moved from iPhone SE 1st gen to Moto Edge 20 recently. VoWifi is pretty stable. I receive more OTP SMS texts in low signal area of the house, even while on VoWifi. Not all the time though. So it might be some mix of two things in my opinion: signal reception capacity of the device and network configuration at the service provider end.

 

[Tejas01]

@MeanMachine did you keep all of your network/system related apps updated from Play Store? I keep all of them updated to resolve any fluctuations. When I got my phone 2-3 days ago, there was a delay in receiving sms over vowifi. Now I get it almost instantly or despite a lag of 5-10 seconds, but I do get it.

 

[MeanMachine]

@Tejas01 I have updated everything yesterday, will check whether it improves things in the coming days...

 

[Nishant]

I have a Samsung Galaxy S21 and SMS has never worked for me over VoWiFi. The network range is pretty patchy in my house especially in my living room and to get OTPs I have to always move to my bedroom or balcony.