Axis Q3517-LV - Page 52

AXISQ37NetworkCameraSeries
Thewebinterface
UseNAT(NetworkAddressTranslation)traversalwhenthedeviceislocatedonanprivatenetwork(LAN)andyouwantto
makeitavailablefromoutsideofthatnetwork.
Note
ForNATtraversaltowork,theroutermustsupportit.TheroutermustalsosupportUPnP®.
EachNATtraversalprotocolcanbeusedseparatelyorindifferentcombinationsdependingonthenetworkenvironment.
•ICE:TheICE(InteractiveConnectivityEstablishment)protocolincreasesthechancesofndingthemostefcient
pathtosuccessfulcommunicationbetweenpeerdevices.IfyoualsoenableSTUNandTURN,youimprovetheICE
protocol’schances.
•STUN:STUN(SessionTraversalUtilitiesforNAT)isaclient-servernetworkprotocolthatletsthedevicedetermineif
itislocatedbehindaNATorrewall,andifsoobtainthemappedpublicIPaddressandportnumberallocatedfor
connectionstoremotehosts.EntertheSTUNserveraddress,forexample,anIPaddress.
•TURN:TURN(TraversalUsingRelaysaroundNAT)isaprotocolthatletsadevicebehindaNATrouterorrewallreceive
incomingdatafromotherhostsoverTCPorUDP.EntertheTURNserveraddressandthelogininformation.
Audioandvideo
•Audiocodecpriority:SelectatleastoneaudiocodecwiththedesiredaudioqualityforSIPcalls.Drag-and-dropto
changethepriority.
Note
Theselectedcodecsmustmatchthecallrecipientcodec,sincetherecipientcodecisdecisivewhenacallismade.
•Audiodirection:Selectallowedaudiodirections.
•H.264packetizationmode:Selectwhichpacketizationmodetouse.
-Auto:(Recommended)Thedevicedecideswhichpacketizationmodetouse.
-None:Nopacketizationmodeisset.Thismodeisofteninterpretedasmode0.
-0:Non-interleavedmode.
-1:SingleNALunitmode.
•Videodirection:Selectallowedvideodirections.
Additional
•UDP-to-TCPswitching:SelecttoallowcallstoswitchtransportprotocolsfromUDP(UserDatagramProtocol)toTCP
(TransmissionControlProtocol)temporarily.Thereasonforswitchingistoavoidfragmentation,andtheswitchcan
takeplaceifarequestiswithin200bytesofthemaximumtransmissionunit(MTU)orlargerthan1300bytes.
•Allowviarewrite:SelecttosendthelocalIPaddressinsteadoftherouter'spublicIPaddress.
•Allowcontactrewrite:SelecttosendthelocalIPaddressinsteadoftherouter'spublicIPaddress.
•Registerwithserverevery:SethowoftenyouwantthedevicetoregisterwiththeSIPserverfortheexisting
SIPaccounts.
•DTMFpayloadtype:ChangesthedefaultpayloadtypeforDTMF.
•Maxretransmissions:SetthemaximumnumberoftimesthedevicetriestoconnecttotheSIPserverbeforeit
stopstrying.
•Secondsuntilfailback:SetthenumberofsecondsuntilthedevicetriestoreconnecttotheprimarySIPserverafterit
hasfailedovertoasecondarySIPserver.
Accounts
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