Here is a list of all struct and union fields with links to the structures/unions they belong to:

### - l -

- L16_Mono : RTP_DataFrame
- L16_Stereo : RTP_DataFrame
- language : IAX2IeData
- Lao : OpalLineInterfaceDevice
- last_seq : RTP_ControlFrame::ReceiverReport
- lastCallTokenID : OpalManager
- lastChanged : H323PeerElementDescriptor
- lastChannelNumber : H245NegLogicalChannels
- LastEvent : SIPDialogNotification
- lastFrameWasIFrame : OpalVideoTranscoder
- lastFrameWasSignal : OpalLineMediaStream
- lastFullFrameTimeStamp : IAX2CallProcessor
- lastID : OpalMSRPManager
- lastInfoResponse : H323RegisteredEndPoint, H323GatekeeperCall
- LastKnownPayloadType : RTP_DataFrame
- lastPayloadSize : Opal_G711_PCM
- lastPDUWasH245inSETUP : H323Connection
- lastRandomSequenceNumber : H235Authenticator
- lastReceivedPacketTime : RTP_Session
- lastReceivedPayloadType : RTP_Session
- lastRegistration : H323RegisteredEndPoint
- lastRequest : H323Transactor
- lastRingState : OpalLine
- lastRRSequenceNumber : RTP_Session
- lastSentCSeq : SIPEndPoint
- lastSentPacketTime : RTP_Session
- lastSentSequenceNumber : RTP_Session
- lastSentTimeStamp : IAX2SequenceNumbers
- lastSentTimestamp : RTP_Session
- lastSequenceNumber : RTP_Session::ReceiverReport
- lastSID : OpalLineMediaStream
- lastSRReceiveTime : RTP_Session
- lastSRTimestamp : RTP_Session
- LastState : SIPDialogNotification
- lastTimestamp : RTP_Session::ReceiverReport, H235Authenticator, OpalSilenceDetector
- lastTransitTime : RTP_Session
- lastUpdateTime : H323PeerElementServiceRelationship
- lastUsedTime : H323Transactor::Response
- lcf : H323GatekeeperLRQ
- Lebanon : OpalLineInterfaceDevice
- length : RTP_ControlFrame::SourceDescription::Item, RTP_ControlFrame::ExtendedReport, T140String
- Lesotho : OpalLineInterfaceDevice
- levelThreshold : OpalSilenceDetector
- Liberia : OpalLineInterfaceDevice
- Libya : OpalLineInterfaceDevice
- license : PluginLID_Definition
- Liechtenstein : OpalLineInterfaceDevice
- line : OpalLineSilenceDetector, OpalLineMediaStream, OpalLineConnection
- lineNumber : OpalLine
- lines : OpalLineEndPoint
- linesMutex : OpalLineEndPoint
- link : OpalLIDRegistration
- listener : OpalListenerTCP, H323DataChannel
- listenerBundle : OpalListenerUDP
- listenerPort : OpalListenerIP
- listeners : OpalEndPoint, H323TransactionServer, H323GatekeeperServer
- ListenerThread() : OpalMSRPManager
- ListenPortNumber() : IAX2EndPoint
- LoadBaseFeatureSet() : H323EndPoint
- LoadFeature() : H460_FeatureSet
- LoadFeatureSet() : H460_FeatureSet
- Local_BadTransportAddress : SIP_PDU
- local_hold : IAX2Connection
- Local_Timeout : SIP_PDU
- Local_TransportError : SIP_PDU
- localAddress : RTP_UDP, OpalTransportIP, OpalListenerIP
- localAliasNames : H323EndPoint, H323Connection
- localAliasPatterns : H323EndPoint
- LocalBye : SIPDialogNotification
- localCapabilities : H323Connection
- localControlPort : RTP_UDP
- localDataPort : RTP_UDP
- localDestinationAddress : H323Connection
- localHasNAT : RTP_UDP
- localId : H235Authenticator
- localIdentifier : H323PeerElement
- localMediaFormats : IAX2EndPoint, IAX2Connection
- localNameMutex : H323PeerElement
- localNumber : IAX2EndPoint
- localNumberOfPresets : OpalH281Handler
- localPartyName : OpalConnection
- localPeerListMutex : H323PeerElement
- localPort : OpalTransportIP, IAX2EndPoint
- LocalRtpInfo() : OpalRTPEndPoint::LocalRtpInfo
- LocalRtpInfoMap : OpalRTPEndPoint
- localServiceOrdinals : H323PeerElement
- LocalServiceRelationshipOrdinal : H323PeerElement
- localServiceRelationships : H323PeerElement
- localURL : OpalSIPIMMediaSession
- localUserName : IAX2EndPoint
- localVideoSources : OpalH281Handler
- LocateGatekeeper() : H323EndPoint
- LocationRequest() : H323Gatekeeper
- logicalChannels : H323Connection
- logicalChannelTimeout : H323EndPoint
- LookingForWork : OpalPresenceInfo
- loss_rate : RTP_ControlFrame::ExtendedReport
- lost : RTP_ControlFrame::ReceiverReport
- LowestPriority : H323PeerElementDescriptor
- LowPriority : SIPEndPoint, H323Gatekeeper
- lowPriorityMonitor : H323Gatekeeper
- lowRateMode0 : PluginCodec_H323AudioG7231AnnexC
- lowRateMode1 : PluginCodec_H323AudioG7231AnnexC
- LPC : RTP_DataFrame
- lpc10 : IAX2FullFrameVoice
- lrj : H323GatekeeperLRQ
- lrq : H323GatekeeperLRQ
- lsr : RTP_ControlFrame::ReceiverReport
- Lunch : OpalPresenceInfo
- Luxemborg : OpalLineInterfaceDevice