MrsIHN and I both have Pixel 7a phones and have recently switched to Spusu SIMs. Spusu uses the EE network.
The phone signal where we live is poor, EE is the best of a bad bunch, so we rely on WiFi calling when we're in the house. However, we consistently have an issue where, when we make a call, it's fine for about a minute or two and then the person at the other end will suddenly not be able to hear us. We can hear them perfectly (saying "hello, hello, can you hear me...?"). At that point we just have to hang up and try again.
It seems worse on outgoing calls than incoming.
We had similar issues previously where the phone would move off WiFi calling to the phone network mid-call if it got a sniff of signal, but the Spusu SIMs allow WiFi calling to be set as the default, which it is. I've even tried it on Airplane mode with the WiFi turned on manually, so it's definitely not using the phone network, but the same issue persists
I suspect it's something related to the mesh network we have (TP-Link Deco, needed due to the thickness of the walls...) and the phone being handed off between nodes maybe, but any other ideas?
No QoS on the handoff perhaps. Is there a setting to enable QoS? Try unplugging all the other nodes and standing near the one left working and test??
Known bug. Spusu + Pixel + IPv6 = broken WiFi calling. One way audio is classic. Airplane mode with WiFi only proves it. Disable IPv6 on your Deco. If that fails, switch providers. Vodafone MVNOs work better with Pixels. Spusu is the problem.
Wow I just looked that up, seems like it's been an issues for at least 2 years. Looks like it affects VoLTE as well. What a joke.
Disable IPv6 on your Deco
From digging around in the Deco app that would just leave IPv4 enabled, is that going to bugger anything else up?
We are streaming, Teams-ing, browsing, work VPN-ing type users, but no gaming
Not much uses IPv6 at a local level. The only thing I've found which requires it, purely anecdotally from my own home setup, is the Xbox. Which you said isn't relevant to you.
In any case, there's no harm in trying it. If it goes breasts skyward, switch it back on again.
From digging around in the Deco app that would just leave IPv4 enabled, is that going to bugger anything else up?
Short answer is it should be okay if it's something up to date.
Nerd answer: If your devices use the "happy eyeballs" (rfc 8305) method, everything should still pretty much work with no issues.Â
If something doesn't use that method, sometimes you get a weird lag while the system first attempts to access the site via ipv6, fails, then tries again via ipv4. It will basically sit there for a while, looking as if the site is down, then suddenly spring to life and work for some period.
I've gotta say, this site loads faster with IPv6 turned off. Whether that's correlation or causation, I dunno.
Correlation, Mark disabled some bot attacks around the time you posted.Â
We get exactly the same behaviour, but on Smarty (Three) with a Deco mesh. It's bad enough to stop those calls from Lloyds Bank working, where you have to type a code into the phone - the other end doesn't hear it.
Pixels and iPhones here - I'll look into the Spusu/ipv6 stuff, thanks. I'd found that being more than one hop from the main Deco unit made it worse.
