the beginning of a call is cut off

[tomo90]

Hi,

my VOIP provider plays information about the number of minutes remaining on my account before every outgoing call. For some reason, Baresip cuts off the beginning of this message. The message says e.g. "You have eighteen minutes remaining." When I call using Baresip I only hear something like "...teen minutes remaining".

None of the SIP clients I have tried so far did this. I have tried Linphone (Windows, Android), Jami (Windows, Android), MicroSIP (Windows), Sipnetic (Android).

Any ideas? :)

[juha-h]

The issue is this: https://stackoverflow.com/questions/47676936/audiomanager-is-introducing-delay-in-the-setmodemode-in-communication and I also created a Google issue about it: https://issuetracker.google.com/issues/133867453.

Which Android version you have in your device? If 12 or greater, baresip can detect when audio mode changes to communication. Below that I could add some delay before actually making the call and hope that the change has been done.

[tomo90]

I'm using Android 13 (LineageOS 20) on an older device - Xiaomi Redmi 3s (from 2016).

[juha-h]

It should work OK with Android 13. Try to call [email protected]. I just did with both baresip and Linphone, and I heard "One moment please ..." with both apps.

[tomo90]

OK, tried that
With Baresip I heard just "..oment please..."
With Linphone I heard the whole message..

[juha-h]

May be in case of your device some amount of delay needs to be added also when Android version is 12+. But it would get too messy. Looks like baresip is not suitable for your device.

[juha-h]

I created a test app https://box.tutpro.com/tmp/audiodelay.apk. It should show three play buttons. First plays digits right after audio mode is changed from normal to communication and second waits after the change has taken place. Third plays them in normal mode. Do you hear all digits with all buttons?

[tomo90]

PLAY IN_COMMUNICATION - I hear "..7 8 9 10"
PLAY IN_COMMUNICATION AFTER CHANGE - I hear "..6 7 8 9 10"
PLAY NORMAL - I hear "1 2 3 4 5 6 7 8 9 10"

[juha-h]

On my Samsung A04 device, I hear all digits with all three buttons. I created new version of https://box.tutpro.com/tmp/audiodelay.apk that has button PLAY IN_COMMUNICATION_AFTER_DELAY. Try with that to find out how big the delay needs to be so that you hear all digits.

[tomo90]

Unfortunately the app crashes on touching the PLAY IN_COMMUNICATION_AFTER_DELAY button.

[juha-h]

tomo90 writes:

Unfortunately the app crashes on touching the PLAY IN_COMMUNICATION_AFTER_DELAY button.

Did you give a delay value, such as 1000?

[tomo90]

Right, that's how it works, of course..sorry, my bad.
The lowest threshold where I can hear all the numbers is 1800 ms.

[juha-h]

Thanks for testing. Since some devices don't need any delay, it would not be a good idea to force the delay to all devices. Perhaps a new setting would be needed to solve the issue.

[tomo90]

No problem, i get it.
BTW, you are doing fantastic job with baresip 👍

[juha-h]

@tomo90 I added in Settings->Audio Settings a new setting Audio Delay with default value 100 (ms). Could you try if the settings solves this issue on your device: https://box.tutpro.com/tmp/baresip.apk. If yes, with what value?

[tomo90]

Seems good! The problem is solved by setting the value to 500 ms.

[juha-h]

tomo90 writes:

Seems good! The problem is solved by setting the value to 500 ms.

Thanks for testing. I'll use 500 as default value if Android version is new enough to detect audio mode changes and 1500 otherwise.

[juha-h]

Remedy is now available in version 54.1.0.