Axis C3003-E User Manual

AXISC2005NetworkCeilingSpeaker
VoiceoverIP(VoIP)
Note
EvenifyouchoosetonotenableSIP,youcanconguretheSIPsettings.ButrememberthatwhenSIPisdisabled,you
cannotmakeorreceivecalls.
PortSettings
•SIPport–EntertheportusedforSIPsessions.Thesignallingtrafcthroughthisportwillbenon-encrypted.Thedefault
portnumberis5060.
•SIPTLSport–EntertheportusedforSIPSsessionsandTLS-securedSIPsessions.Thesignallingtrafcthroughthisport
willbeencryptedusingTransportLayerSecurity(TLS).Thedefaultportnumberis5061.
•RTPstartport–EntertheportusedfortherstRTPmediastreaminaSIPcall.Thedefaultstartportformediatransport
is4000.SomerewallsmightblockRTPtrafconcertainportnumbers.Aportnumbermustbebetween1024and65535.
Note
IfthePBXchangestheportusedforSIPmessages,itispossibletoreceiveanoticationregardingthis.EnabletheAllow
portupdatemessagesthroughMWIoptionfromtheAddAccountwindow(Applications>VoIPClient>VoIPSettings.
ClickCongureunderAccountSettings.ClickAdd).
NetworkAddressTranslation(NAT)Traversal(portforwarding)
UseNATtraversalwhentheAxisproductisconnectedtothenetworkbehindaNATrouterorrewalldevice.
WithoutSIP-specicportforwarding,usersofclientswithinthesameprivatenetworkwouldbeabletotalktoeachotherbut
usersofclientsindifferentnetworkswouldnot.
ThefollowingNATtraversalsettingsareavailable:
•STUN–SessionTraversalUtilitiesforNAT(STUN).
•TURN–TraversalUsingRelaysaroundNAT(TURN).
•ICE–InteractiveConnectivityEstablishment(ICE).
EachNATtraversalprotocolcanbeusedseparatelyorindifferentcombinationsdependingonthenetworkenvironment.
Note
Formoreinformationabouttheproduct’sgeneralNATtraversalsettings,seeNATtraversal(portmapping)forIPv4onpage31.
InteractiveConnectivityEstablishment(ICE)
InteractiveConnectivityEstablishment(ICE)enablestheproducttosendarequestthatincludesmultipleaddressestothereceiving
device.Initsresponse,thereceivingdevicealsoincludesmultipleaddresses.Throughaprocessofconnectivitychecks,alsocalled
handshakes,thechannelforcommunicationisestablished.
ICEincreasesthechancesofndingthemostefcientpathtosuccessfulcommunicationbetweenpeerdevices.Ifyoualsoenable
STUNandTURN,youimprovetheICEprotocol’schancesofndingthemostefcientpathtosuccessfulcommunication.
SessionTraversalUtilitiesforNAT(STUN)
SessionTraversalUtilitiesforNAT(STUN)isaclient-servernetworkprotocolthatenablestheproducttoaskaSTUNserveronthe
InternetforamappedpublicIPaddress.TheSTUNserverresponseincludesthisIPaddressandportsothattheclientcanusethem
initsSIPmessagestootherhostsandclients.
LikeTURN,STUNcanbeusedinfull-cone,address-restrictedcone,andport-restrictedconeNATsetups.STUNisfastbecauseit
islightweight.However,STUNdoesnotallowincomingmessagesfromsymmetricNATs,anditcannotcommunicatewithapeer
behindthesameNATdevice.
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Axis C3003-E Specifications

General

Brand	Axis
Model	C3003-E
Category	Speakers
Language	English