WiFi calling, Vodafone - disconnects after 15 min
Discussion
Not every single time but most times I am on the phone using Wifi calling, I'll get disconnected at exactly 15 minutes and 0 seconds. It only seems to happen with outbound calls as far as I am aware, but it's not often I'm on the phone for that long in any event. If I disable Wifi calling it's fine (albeit with reduced call quality). Pretty certain it happens regardless of what Wifi network I'm connected to as well.
My phone is a Pixel 7a, fully up to date. Vodafone have been precisely zero help, predictably just trying to blame my ISP or wifi despite being told it happens on any wifi network. Any help welcome...
My phone is a Pixel 7a, fully up to date. Vodafone have been precisely zero help, predictably just trying to blame my ISP or wifi despite being told it happens on any wifi network. Any help welcome...
Google suggests that there are safety apps on the Android phone, which cause this & similar. An anti fraud thing. On other carriers wifi calling also.
Can you try the sim in a different phone, to see if you get the same problem using wifi calling? To prove if it’s phone related. Some say try the phone in safe mode ‘ no apps running’, I have no idea how to do that as not on Android!
Can you try the sim in a different phone, to see if you get the same problem using wifi calling? To prove if it’s phone related. Some say try the phone in safe mode ‘ no apps running’, I have no idea how to do that as not on Android!
Sorry to say, I find wifi calling infuriating! We rely it in 100% for our home calls due to lack of signal.
My phone on Vodafone? Wifi calling never worked reliably, moving to ID mobile... Works fine.
My wife's phone on ID? WiFi calling is very unreliable, and 50% of the time simply refuses to kick in, despite having <10% signal.
Can only think to change her phone to one that is hopefully compatible... Even though itll be software bulls
ttery
Edit... And yet neither of us suffer a 15min cut out!!
My phone on Vodafone? Wifi calling never worked reliably, moving to ID mobile... Works fine.
My wife's phone on ID? WiFi calling is very unreliable, and 50% of the time simply refuses to kick in, despite having <10% signal.
Can only think to change her phone to one that is hopefully compatible... Even though itll be software bulls
tteryEdit... And yet neither of us suffer a 15min cut out!!
15 minutes makes it a common SIP issue. I'd want to see the initial invite and see what the session timer header says. If you could trace sip messaging on your router you might be able to see if this is the case.
Won't help you much if it is though, as you're not going to be running an SBC, so you can't use message manipulation to strip out the header.
Sorry. day job bleeding over.
I'd see if, as a first move you can turn off SIP ALG on the router, along with any other SIP or voip settings you can find; google the make/model of your router and SIP. If you've got another router to try, that's also not a bad idea.
Most issues with home internet and SIP are down to SIP ALG in my experience.
Won't help you much if it is though, as you're not going to be running an SBC, so you can't use message manipulation to strip out the header.
Sorry. day job bleeding over.
I'd see if, as a first move you can turn off SIP ALG on the router, along with any other SIP or voip settings you can find; google the make/model of your router and SIP. If you've got another router to try, that's also not a bad idea.
Most issues with home internet and SIP are down to SIP ALG in my experience.
jimmyjimjim said:
I'd see if, as a first move you can turn off SIP ALG on the router, [...]
Most issues with home internet and SIP are down to SIP ALG in my experience.
I agree with jimmyjimjim. SIP ALG setting seems to be the usual culprit. Get ready for 20 million households cursing "SIP ALG" as the BT switchover happens...Most issues with home internet and SIP are down to SIP ALG in my experience.
biggiles said:
jimmyjimjim said:
I'd see if, as a first move you can turn off SIP ALG on the router, [...]
Most issues with home internet and SIP are down to SIP ALG in my experience.
I agree with jimmyjimjim. SIP ALG setting seems to be the usual culprit. Get ready for 20 million households cursing "SIP ALG" as the BT switchover happens...Most issues with home internet and SIP are down to SIP ALG in my experience.
Hundreds of thousands are using it today
It will have been fixed
If it's cutting out at exactly the same time then it's unlikely to be sip alg, if it's only happening on his router then UDP timeout/NAT refresh rate would be more likely candidates. If it's an ISP supplied router then it's something that may not be changeable.
If it's happening on 4g/5g/other wifi then it's indicative that it's a phone setting.
If it's happening on 4g/5g/other wifi then it's indicative that it's a phone setting.
Thanks for all the responses.
I work in IT but not really in comms so some of this sounds familiar but not in my field. The phone has two settings for Wifi calling - on, and off. That's it, unless there's a way to get more access under the covers as it were. I don't have another phone to test it with unfortunately.
I know little about SIP but other stuff in the network (e.g. Teams on work laptop) don't seem to have an issue - not sure if that still uses SIP though? I have just found and disabled SIP ALG on my router though so will see if that makes any difference.
Can't see any setting for UDP timeout or NAT refresh rate. The router is a Technicolor thing that I was supplied with when I switched to Zen on Cityfibre. I'm not averse to purchasing a better one if this is potentially causing issues.
I work in IT but not really in comms so some of this sounds familiar but not in my field. The phone has two settings for Wifi calling - on, and off. That's it, unless there's a way to get more access under the covers as it were. I don't have another phone to test it with unfortunately.
I know little about SIP but other stuff in the network (e.g. Teams on work laptop) don't seem to have an issue - not sure if that still uses SIP though? I have just found and disabled SIP ALG on my router though so will see if that makes any difference.
Can't see any setting for UDP timeout or NAT refresh rate. The router is a Technicolor thing that I was supplied with when I switched to Zen on Cityfibre. I'm not averse to purchasing a better one if this is potentially causing issues.
camel_landy said:
8bit said:
SO disabling the SIP ALG setting on the router didn't help - I had a call drop last night again at exactly 15 minutes 
Have you tried it on a different Internet connection, preferably one with a different ISP?M
James6112 said:
Have you tried a different phone, or the existing with no apps running if possible.
Could be phone related. Anti fraud
I don't have another phone to test with.Could be phone related. Anti fraud
jimmyjimjim said:
I was wrong, shame. Bit disappointed that wasn't it.
Ok, what router is it? Can you see what timers you have access to, looking for 900 and 1800 seconds.
It's some Technicolor thing, the web UI reports the model as DGA4134. I couldn't see any timeouts for anything much.Ok, what router is it? Can you see what timers you have access to, looking for 900 and 1800 seconds.
I'm not sure if this is relevant (in terms of specific protocols etc.) but I have no problem with stuff like MS Teams calls for work - I don't use my phone for those though, I have a work laptop for that.
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