iOS didCalleeReceiveDial never gets called

The DirectCallDelegate method didCalleeReceiveDial never gets called on iOS.
I’ve added the method to the quickstart project, called a user but the method never got called. The other ones did, for example the didEstablish after accepting the call.
Is that a known bug or am I missing something?

[SDK Version]

[Reproduction Steps]

  • add
    func didCalleeReceiveDial(_ call: DirectCall) {
        print("****** Callee received dial")

to VoiceCallViewController.

  • Perform a call to any user from the project
  • Method never gets called.

I’ve uploaded the sample project to Google Drive.

All the time.

[Current impact]
Cannot determine if the callee received the call.