Signal-android: Signal Call blocked again in Qatar (Ooredoo Qatar Network) !?

[BUAWF]

• [x] I have searched open and closed issues for duplicates
• [x] I am submitting a bug report for existing functionality that does not work as intended
• [x] I have read https://github.com/signalapp/Signal-Android/wiki/Submitting-useful-bug-reports

---

Bug description

Signal Call not working as intended in Qatar (Ooredoo Qatar Network). Was perfectly working in 4.68.8, after 4.69.x calls not working. Please check this issue.

Steps to reproduce

• Select a contact
• Tap on Call icon
• As soon as the recipient picks-up the call, voice comes like strings of Guitar

Actual result:
Voice is not clear at all.

Expected result:
Voice has to be clean.

Device info

Device: Huawei Honor 8X
Android version: 10.0.0
Signal version: 4.69.6

Link to debug log

https://debuglogs.org/8252c229d3aa48dbf411da41e8b5ec64eae4ee95f790d38abf16825cf969805d

Edit 1 :- Honor 8X

New Logs with updated version 4.72.5

https://debuglogs.org/035bcec4daa8d0aab6d847e030ab86234d21c05098252e5efcf0811cc92c92ee

Edit 2 :- Device - Galaxy S10 lite

New Logs with updated version 4.75.4

https://debuglogs.org/60897fc6ff0d7067c4203c6f20708ad947304d40aee251505117caf06aa41ccb

Edit 3 :- Galaxy S10 lite (working with 1.1.1.1 warp app)

Fresh logs with v4.75.8

https://debuglogs.org/d658cc8103f4c543876a96d074d0802edf2d97d39053159bbb1a6adfe1ef35a3

Edit 4 :- Galaxy S10 Lite (logs with 1.1.1.1 enabled)

With this (1.1.1.1) enabled, it takes some time for the voice to get stable, else the recipient is able to hear Me clearly from the beginning but His voice is like strings at first for Me for some seconds then it's stable. This is the situation only when connected to 1.1.1.1 app.

But, without the app it's completely not working at all.

Logs with v4.76.3

https://debuglogs.org/0f5027ddcff6b1b203c8e8fbed4470c87643c1a0a1f335cdf5e62e6f927cc745

Edit :- 5 Galaxy S10 Lite (v4.77.3)

Issue still there.

https://debuglogs.org/f28b0068c54b21437e7037028f4e9dea81b46fc5dc04f1e892bba1570ef0b63a

Edit :- 6 Galaxy S10 Lite (v4.79.3)

Issue available with Ooredoo Network.

https://debuglogs.org/d6ad1efcb0796d7d0deb90178bf8396067f1c138cd2c61eb55723afbd4cd2d82

Edit 7 :- S10 Lite (v5.0.8)

logs

https://debuglogs.org/e2c48d4517e682061dc807f2bde94d0310a04482e595690d0efeb63ab5cb5baf

[BUAWF]

Anyone, Please, Help Us.

[trad01]

This is normal behavior with a bad internet connection.
What happens when you try calling again?
Is this the same at all times of the day?
Is this the same regardless whether you are using wi-fi or Cell data?
What is the status of the person being called? Do they have good internet connection? Are they on wi-fi or Cell data.
Do you have this problem with multiple people?

[BUAWF]

This is normal behavior with a bad internet connection.
What happens when you try calling again?
Is this the same at all times of the day?
Is this the same regardless whether you are using wi-fi or Cell data?
What is the status of the person being called? Do they have good internet connection? Are they on wi-fi or Cell data.
Do you have this problem with multiple people?

There was no issue at all in v4.68.8 regardless of wifi or data. No isuues from the internet.

Logs are provided please see as I do not understand it.

[BUAWF]

@greyson-signal What could be the issue ?
Please help.

[BUAWF]

@greyson-signal

I've edited OP with fresh logs from updated version of Signal 4.72.5

[BUAWF]

@greyson-signal @jim-signal

Anything changed from Signal v4.68.8's RingRTC version to 4.69.xx & 4.72.xx ?

Probably thats causing some issue. I've rechecked with v4.68.8 & it's working Perfect without issues for Voice Call.

[greyson-signal]

Hi there, our calling team took a look at your logs, and it's looking largely like typical network noise. However, if going back to an older version fixes it, I'll let them know that and see if it gives them any ideas.

[BUAWF]

Hi there, our calling team took a look at your logs, and it's looking largely like typical network noise. However, if going back to an older version fixes it, I'll let them know that and see if it gives them any ideas.

Does DNS Rebinding cause this network noise issue ?

I'm assuming Our ISP (Ooredoo Qatar) has Enabled DNS Rebinding. Could it be ?

[BUAWF]

it's looking largely like typical network noise.

@greyson-signal @jim-signal

Do not know about if it is this, but using AdGuard VPN (usually using adguard) or any other VPN it's working perfectly fine.

[BUAWF]

@greyson-signal

https://github.com/signalapp/Signal-Android/commit/84ec6dd45833eacdc658a1b89635c9468bdc60a7

related to this ?

[greyson-signal]

@BUAWF Yep!

[BUAWF]

@BUAWF Yep!

I Love You.

Hope this works.

God Bless You Dear.

I Pray to God, that, You get Success at Every Step of Your Life.

Amen.

[BUAWF]

@greyson-signal

84ec6dd

Isn't this commit needed for Signal iOS too ?

Because I've iOS users (Friends) using Signal.

[BUAWF]

@greyson-signal @jim-signal @peter-signal

Please see to it, updated logs with the latest stable with device Samsung Galaxy S10 lite. Still going into strings.

https://debuglogs.org/60897fc6ff0d7067c4203c6f20708ad947304d40aee251505117caf06aa41ccb

[BUAWF]

@greyson-signal

Can it be possible to try without enforcing the Censorship ?

[BUAWF]

@greyson-signal @jim-signal @peter-signal @moxie0

https://thepeninsulaqatar.com/article/25/12/2019/Ooredoo-strengthens-Business-Broadband-security

"Secure64’s SecureOS is a DNS-focused operating system that provides service providers with scalable and virtualised DNS performance and unmatched security."

edit:-

https://thepeninsulaqatar.com/article/02/11/2020/Ooredoo-launches-Qatar%E2%80%99s-first-Quad-Play-business-packages

"DNS Security is also allowed in all packages to protect from malware, botnets, and ransomware."

[BUAWF]

@greyson-signal

Updated logs with 1.1.1.1 warp app connected, it's working. Ain't working without it.

https://debuglogs.org/d658cc8103f4c543876a96d074d0802edf2d97d39053159bbb1a6adfe1ef35a3

[BUAWF]

@greyson-signal @alex-signal @cody-signal @moxie0 @jim-signal @alan-signal @peter-signal

New logs as of now, still the same thing like guitar strings.

https://debuglogs.org/2526b4b44e6c794f9f6cbcacc2eb9e03b79029f712c0717ffdee1bca763f08bb

[BUAWF]

@greyson-signal @moxie0 @alex-signal @alan-signal @peter-signal @jim-signal @cody-signal @EvanHahn-Signal

Dear Team, please see to it.

New logs with v4.76.3 with 1.1.1.1 enabled.

https://debuglogs.org/0f5027ddcff6b1b203c8e8fbed4470c87643c1a0a1f335cdf5e62e6f927cc745

[BUAWF]

@greyson-signal

Issue still persists. Logs with v4.77.3

https://debuglogs.org/f28b0068c54b21437e7037028f4e9dea81b46fc5dc04f1e892bba1570ef0b63a

[BUAWF]

@greyson-signal

Will the new Rust Signal Protocol help in sorting this ?

And, What actually could be the issue ?
Were You able to identify ?

[BUAWF]

@greyson-signal

Still issue with v4.79.3.

logs :-

https://debuglogs.org/d6ad1efcb0796d7d0deb90178bf8396067f1c138cd2c61eb55723afbd4cd2d82

[BUAWF]

@greyson-signal

issue persists with version 5.0.8.

https://debuglogs.org/e2c48d4517e682061dc807f2bde94d0310a04482e595690d0efeb63ab5cb5baf