Modifying the system time may cause unresponsive outgoing calls.

[azhu003]

Hi.

1. Describe the bug (mandatory)

Altering the system time will cause outgoing calls to become unresponsive and fail to disconnect automatically. Even after manually ending the call, all subsequent calls will exhibit the same issue—even if you revert the time to the correct setting.
The same issue can also be reproduced in ​​Linphone for Android​​.

2. To Reproduce (mandatory)

​​ 1. Successfully register an account (status: registration succeeded).​​

​​ 2. Use adb shell toybox date MMddHHmmyyyy.ss to modify the system time.​​

3. Call another account.​

4. Expected behavior (mandatory)

Make a regular call​

4. Please complete the following information (mandatory)

Linphone For Android: 5.3.1
Linphone For Android SDK: 5.4.36

5. SDK logs (mandatory)

​​Linphone for Android fails to upload logs properly at this stage.​​

6. Adb logcat logs (mandatory if native crash)

7. Screenshots (optionnal)

Thank you in advance for filling bug reports properly!

[Viish]

Hi @azhu003

Please attach logs showing the issue.
Also, do you reproduce it with the 6.0.17 release of Linphone?

[azhu003]

Hi @Viish
Thank you for your reply. I tested it on an Android 11 device using the SDK ​​linphone-sdk-android-5.5.0-alpha.31357+6acfc43806.aar and the app ​​linphone-android-6.0.17.apk. The issue consistently reproduces after multiple manual time modifications using the command toybox date 090211422025.42.

It seems that the ​​linphone-android-6.0.17.apk​​ version does not have a dedicated ​​log export interface​​?

[azhu003]

Here are the reproduction steps after integrating the ​​linphone-sdk-android-5.5.0-alpha.31357+6acfc43806.aar​​ SDK:

The issue occurs when I manually set the system time to ​​2025-09-03 13:42:42​​.

​​13:42:47.821​​: The call is initiated.

​​13:43:17.908​​: The call is disconnected due to a ​​30-second timeout​​ (implemented in my own application).

Below are the relevant ​​LinphoneSDK logs​​.

linphone1.log

Hi @Viish Thank you for your reply. I tested it on an Android 11 device using the SDK ​​linphone-sdk-android-5.5.0-alpha.31357+6acfc43806.aar and the app ​​linphone-android-6.0.17.apk. The issue consistently reproduces after multiple manual time modifications using the command toybox date 090211422025.42.

It seems that the ​​linphone-android-6.0.17.apk​​ version does not have a dedicated ​​log export interface​​?