Unable to control APN setting for streaming with Phonon Helix backend

The Phonon Helix backend uses it's own internal mechanism for selecting the APN which it uses for streaming.
The APN is configurable only from Videos->Settings->Streaming settings.
The setting does not follow the platform default settings nor the connection settings possibly applied by any application.

Therefore applications opening connections with different APN than the one defined for Helix, will use try to open connections with multiple APNs when streaming with Phonon.