### - f -

- fastResponseRequired : H323Transaction
- fci : RTP_ControlFrame::FbTMMB, RTP_ControlFrame::FbTSTO, RTP_ControlFrame::FbFIR
- FeatureCategory : H460_Feature
- FeatureInstance : H460_Feature
- features : H323EndPoint, H323Connection, H323Gatekeeper
- file : OpalFileMediaStream
- filters : OpalMediaPatch
- finalFrames : OpalMediaPatch::Sink
- firmwareVer : IAX2IeData
- firstMediaFrame : IAX2CallProcessor
- firstOctet : H281VideoSource
- firstPacketReceived : OpalRTPSession
- firstPacketSent : OpalRTPSession
- flags : PluginCodec_Definition
- fnName : OpalPluginControl
- forceIFrame : OpalVideoTranscoder
- forceIsTransportable : OpalMediaFormatInternal
- format : IAX2IeData
- formatName : OpalMediaFormatInternal
- formats : SDPMediaDescription
- fraction : RTP_ControlFrame::ReceiverReport
- fractionLost : OpalRTPSession::ReceiverReport
- frameList : IAX2Processor
- frameType : IAX2Frame
- freeOptionsControl : OpalPluginTranscoder, OpalPluginMediaFormatInternal
- fromDestination : Q931
- fromNetworkFrames : IAX2Receiver
- fromRemote : H323ChannelNumber
- fwBlockData : IAX2IeData
- fwBlockDesc : IAX2IeData