[Freeswitch-users] One-way audio when connecting incoming SIP call and WebRTC call using Valet Parking

Hi, I have problem got one-way audio when connection incoming SIP call and WebRTC call using ValetParking. This is my setup: Browser(WebRTC/Opus)->FS Box 1->FS Box 2 (Core)<-SBC(SIP/G711)<-Telco Network<-Handphone. The call came from SBC as SIP call and FS Box 2 accept and park call on valet parking. Browser place call to FS Box 1 and FS Box 1 will bridge to FS Box 2, and in FS Box 2, this call will retrieve call from valet parking. It result Handphone user can hear Browser user, but browser user cannot hear handphone user. How to solve this problem? Thanks, Donny