Significant delay in voice calling - both on wifi and without.

[PhilRig]

Hi everyone,

I am quite new to Smarty and have an issue with voice calling - Calls connect with no problem but there is a significant delay in the other person hearing me. Sometimes this delay is such that I have to abandon the call. It seems to be worse when using WiFi calling. I’m on iPhone 12.

Any thoughts?

[Chalkychap]

I have very good WiFi Calling on my iPhone 13 @PhilRig. 

I'm running iOS 16.7.1 - what iOS is running on your iPhone 12?

[PhilRig]

I’m on 17.0.3 so bang up to date. I’ve tried resetting everything and clearing cache etc so hopefully that will help.

[MSF]

@PhilRig Any chance that you could try the sim in another phone to see if it is replicated? This would rule out a problem with the handset.

[BrianMcBriany]

I’m having this issue too on an iPhone 15 Pro, with full 5G signal or using WiFi calling. Brand new SIM.

im really anxious for a fix. I’ve tried logging a support call via chat, the staff didn’t really seem to understand and just closed the ticket after a few weeks.

[MSF]

@BrianMcBriany  As I said earlier to the OP, have you tried the sim in another phone?

[CJB]

I am having a similar problem. I am on Android, have tried the sim in two phones, and get the same problem on both phones. The call starts fine with no delay, but as the call length increases, say talking for 10 or 15 minutes, the voice delay increases. For example, I ask a question, but the person i'm talking to, does not answer for perhaps 10 or 20 seconds, and vice versa. It makes having a conversation impossible. The only solution it seems, is to restart the call. This happens on both network and wifi calls.

Any suggestions ?

[Mason_1561875]

Also having this issue for the past month or so. iPhone 13.

[Dominic_2009501]

Im having the same issue - Originally when I was on Three I would call a family member on their landline and after 20-30 minutes a delay in my voice transmission to them would occur.  It would then get so long we would have to abandon the call.  I have since switched to Smarty - who are owned by Three and use Three's network and the same problem happens.  I have made calls over wifi, without wifi, with bluetooth headset and without bluetooth headset yet it still happens. This happens on different phones with the same SIM card in.  It shouldnt be the SIM because as I say I was originally on Three and switched to Smarty and ported my number to a new sim card.

[AlexHin_2237096]

I'm having the same issue, i've tried the same troubleshooting. I even get the delay at different cell sites away from my usual home ones. The delay is often present as soon as 2 minutes into a call. Has anybody had any joy with customer service? Device- Google Pixel 7 Pro up to date

[R_Lokish]

I'm having this exact issue mid-2024. It's so bad, often the delay even begins at the start of the call. This is extremely frustrating and happens around 50% of the time. Unfortunately SMARTY support is of no use and there is not much about this issue online.  I'm switching to a non 3 run network.  

[Frank121]

I also have this issue intermittently and normally only when I call fixed lines. It's very random even in the same areas with very good 4G coverage. It's really annoying and I am suprised there aren't more complaints about this as even seems to occur with latest devices. Maybe not many people call fixed lines, but I am having this issue on/off for the last year. This issue does not happen on 3G but with the switch off just around the corner - then my experience is only going to get worse. I thought over time this would be fixed but since it's been a year already, it's not looking likely. 

[MSF]

@Frank121  You mention that this only occurs when you call landline numbers. Do you know if they are internet based numbers?

It sounds rather like the issue may be at the interface where mobile moves to landline. That said, I make all calls via my mobile these days and do not experience that problem on 4G/5G.

[Frank121]

@MSF- There is one landline that I call all the time which is a traditional PSTN line served on copper provided by TalkTalk. (not Digital voice or internet based) When I call this number, the delay happens often but not everytime. Other than that number, it also happens when I call other landline numbers or call centres etc. These of course could be internet lines.

If you also make these type of calls and have never experienced this issue then that's good to know. What device do you use? I've yet to properly try out another device but given this thread exists for diifferent devices - I wasn't very hopefull.

[MSF]

@Frank121  In our house there are two of us with iPhones and we do not have issues (hope that hasn't jinxed it!!!!)