Axis 01796-001 - Speaker Test; Voice over IP (Voip); Dual-Tone Multi-Frequency (DTMF)

AXISC1310-ENetworkHornSpeaker
Learnmore
Learnmore
Speakertest
Thespeakertestisatestthatcanbeinitiatedfromaremotelocationtoverifythatthespeakerisworkingasintended.
TheAutoSpeakerTestmustbecalibratedduringrsttimeusefromitsmountedpositionattheinstallationsite.Ifthespeakeris
movedorifitslocalsurroundingschange,forinstanceifawallisbuiltorremoved,thespeakershouldbere-calibrated.
Thespeakerperformsthetestbyplayingaseriesoftesttonesthatareregisteredbythebuilt-inmicrophone.Everytimeyourunthe
test,theregisteredvaluesarecomparedwiththevaluesthatwereregisteredduringthecalibration.
VoiceoverIP(VoIP)
VoiceoverIP(VoIP)isagroupoftechnologiesthatenablesvoicecommunicationandmultimediasessionsoverIPnetworks,suchas
theinternet.Intraditionalphonecalls,analogsignalsaresentthroughcircuittransmissionsoverthePublicSwitchedTelephone
Network(PSTN).InaVoIPcall,analogsignalsareturnedintodigitalsignalstomakeitpossibletosendthemindatapackets
acrosslocalIPnetworksortheinternet.
IntheAxisproduct,VoIPisenabledthroughtheSessionInitiationProtocol(SIP)andDual-ToneMulti-Frequency(DTMF)signaling.
SessionInitiationProtocol(SIP)
TheSessionInitiationProtocol(SIP)isusedtosetup,maintainandterminateVoIPcalls.Youcanmakecallsbetweentwoormore
parties,calledSIPuseragents.TomakeaSIPcallyoucanuse,forexample,SIPphones,softphonesorSIP-enabledAxisdevices.
TheactualaudioorvideoisexchangedbetweentheSIPuseragentswithatransportprotocol,forexampleRTP(Real-Time
TransportProtocol).
Youcanmakecallsonlocalnetworksusingapeer-to-peersetup,oracrossnetworksusingaPBX.
Dual-ToneMulti-Frequency(DTMF)
Dual-ToneMulti-Frequency(DTMF),alsoknownastouch-tone,isasignalingsystemusedbytelecommunicationdevicessuchas
telephonehandsets,switchcenters,doorstations,andothercommunicationdevices.
DTMFcanbeusedtosendcommandstoaremotedeviceinordertoinstructtheremotedevicetoperformcertainactions.
Peer-to-peerSIP(P2PSIP)
ThemostbasictypeofSIPcommunicationtakesplacedirectlybetweentwoormoreSIPuseragents.Thisiscalledpeer-to-peerSIP
(P2PSIP).Ifittakesplaceonalocalnetwork,allthat’sneededaretheSIPaddressesoftheuseragents.AtypicalSIPaddressinthis
casewouldbesip:<local-ip>
Example
16