[Freeswitch-users] Park & Retrive call with different codec in call legs

Hi, I tried to do valet parking, with first call (from gsm handphone using g711) parked, and retrieved by second call (from webrtc/webpage using opus). The park and retrieve is success, but the sound only one way. the gsm handphone can hear the user from webpage, but the user in webpage cannot hear the gsm handphone user. Is it a problem when using park/retrieve when using difference codec? Donny