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Multitech 810-FX Fax Machine User Manual

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 Chapter4–ConfiguringYourMultiVOIP

MultiVOIP®Voice/FaxoverIPGateways 77

NATTraversal

SettingtheNATTraversalparameters.NAT(NetworkAddress Translation)parametersareapplicableonlywhen

theMultiVOIPisoperatinginSIPmode.STUN(SimpleTraversalofUDPthroughNATs(NetworkAddress

Translation))isaprotocolforassistingdevicesbehindaNATfirewallorrouterwiththeirpacketrouting.Thisis

notavailable

onthe–SSmodels.



ThefollowingtabledescribesNATTraversalfields.





NATTraversalDefinitions

FieldName Values Description

Enable(STUN) Y/N EnablesSTUNclientfunctionsintheMultiVOIP.

STUN(SimpleTraversalofUDPthroughNATs(NetworkAddressTranslation))isa

protocolthatallowsaservertoassistclientgatewaysbehindaNATfirewallorrouter

withtheirpacketrouting.

Name/IP(Server) n.n.n.n IPaddressoftheSTUNserver.

Port(Server;NAT/STUN) port;

default=

3478

Thedataport(TDMtimeslot)atwhichSTUNinfoistransmittedandreceived.

KeepAlive(Timers;

NAT/STUN)

60–3600

(seconds)

TheintervalatwhichtheSTUNclientsendsindicator(“KeepAlive”)packetstothe

STUNservertodeterminewhetherornottheSTUNserverisavailable.

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