3+ Second Delay in Voice Call

[kekkoudesu]

• [x] I have searched open and closed issues for duplicates
• [x] I am using Signal-Desktop as provided by the Signal team, not a 3rd-party package.

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Bug Description

For at least the past few weeks (possibly longer), whenever I call someone who is in the same country as me—certainly not far enough away to warrant this delay—there has been a significant delay before our voices reach each other. I'll speak, and for 3 seconds, the other party won't hear me. They are using Signal-Android.

It wasn't always like this. For 2+ years, I've been calling them with no issues using Signal-Desktop.

Calling the other party on my cellphone through normal unencrypted calling sometimes doesn't have this delay. Making sure Signal on Android only uses mobile data for calling sometimes doesn't have this delay.

Steps to Reproduce

1. Call someone on Signal Desktop.
2. Speak.
3. Get a 3-second delay.

Actual Result:

There is a 3-second delay.

Expected Result:

There is not a 3-second delay.

Platform Info

Signal Version:

6.16.0 Production (community/signal-desktop repository)

Operating System:

Arch Linux

Linked Device Version:

This occurred on several iOS linked versions and Android linked versions.

Link to Debug Log

I will attach a debug log next this happens, should it be useful.

[indutny-signal]

Hello! Sorry you have to deal with it, a debug log would certainly be most useful to help us investigate it. If you could also obtain the debug log from the other person's device - it'd be awesome!

Thanks and hope we can fix it for you soon!

[kekkoudesu]

6 second delay today on Desktop.

signal-android-log-1688206715140.zip signal-desktop-debuglog.txt

[kekkoudesu]

Today, there were varying delays as we switched from ethernet to wifi to mobile data. Whenever we switched, the delay would be gone, but over time there a delay would be introduced. At a guess, Signal takes the lowest priority of anything on the network.

Here are the debug logs today. debuglog-desktop-2.txt signal-log-android-2.zip

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been closed due to inactivity.

[kekkoudesu]

@indutny-signal Could you re-open this? This issue still occurs reliably. I try it every week.

[scottnonnenberg-signal]

@kekkoudesu I'm sorry this is still happening to you - could we get another pair of logs, one from your device and another from the other person on the call?

[kekkoudesu]

@scottnonnenberg-signal I just called the other person today. There was an 8-second delay. It's gotten much, much worse.

My internet speed is 108MB/s down and 7.5MB/s up. My internet speed is not the problem. Calling elsewhere works fine. See attached debug logs. signal-log-1709284455786-android.zip

signal-debuglog-desktop.txt

[kekkoudesu]

I also tried on my phone. 5 second delay.

Here's my debug log on my Android phone: signal-log-1709284652047-android-myphone.zip

[trevor-signal]

@kekkoudesu thanks for the logs, we'll investigate!

[CelianGdfrd]

@scottnonnenberg-signal I just called the other person today. There was an 8-second delay. It's gotten much, much worse.

My internet speed is 108MB/s down and 7.5MB/s up. My internet speed is not the problem. Calling elsewhere works fine. See attached debug logs. signal-log-1709284455786-android.zip

signal-debuglog-desktop.txt

Can confirm that it's getting worse and worse in time. Call takes, like, 10 seconds to connect, and then the delay persists during the whole phone call. It makes the feature completely unusable for me.

Happens whenever I'm on Linux or on Android.

[scottnonnenberg-signal]

@Kalytis It would really help us if you could get a debug log from the caller and receiver devices after this happens.

You said that it happens both with Android and with Linux? Logs from each would be useful. Thanks!

[CelianGdfrd]

log.txt

Log from receiver call (12:53)