No incoming audio on incoming calls

[ness77]

Context

Im using the Windows desktop version Desktop 5.2.0-alpha.178+66354134 - Qt5.15.2 Core 5.3.0-alpha-363-g529504596 for my company to do costumer support calls. (mainly for incoming calls) This doesnt seem to work because i can't hear the caller on Linphone.

Tested calling my Linphone desktop from my iphone but seems to happne for all other devices.

Things I tried:

• Set Linphone to the Whitelist of Windows firewall
• port foward 5066 in my fritz.box settings

Logs: https://www.linphone.org:444//tmp/657859b078c4a_b77e060e810174ff89bd.gz

General information

• Device:
• OS:
• Version of the App:
• Version of the SDK:

Expected behaviour

I wanted to do a simple call with the Linux client getting called from my Iphone but I can't hear the caller (iphone)

To Reproduce

1. Set up ip telefon on fritz.box
2. Set up SIP-Account on Linphone
3. Calling Linphone from Iphone

Additional context

No response

SDK logs URL

No response

[ThomasHilbertAtCervis]

Same problem here with Desktop 5.2.2 - Qt5.15.2, Core 5.3.34

Outgoing calls work without problem. Incoming calls have no audio for any participants.