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

Appendix B – TCP/UDP Port

Assignments

WellKnownPortNumbers

ThefollowingdescriptionofportnumberassignmentsforInternetProtocol(IP)communicationistakenfrom

theInternetAssignedNumbersAuthority(IANA)website(www.iana.org).

“TheWellKnownPortsareassignedbytheIANAandonmostsystemscanonlybeusedbysystem(orroot)

processesorbyprogramsexecutedby

privilegedusers.PortsareusedintheTCP[RFC793]tonametheends

oflogicalconnectionswhichcarrylongtermconversations.Forthepurposeofprovidingservicesto

unknowncallers,aservicecontactportisdefined.Thislistspecifiestheportusedbytheserverprocessasits

contactport.

Thecontactportissometimescall edthe"well‐knownport".Totheextentpossible,these

sameportassignmentsareusedwiththeUDP[RFC768].TherangeforassignedportsmanagedbytheIANA

is0‐1023.”

Thefollowingtabledescribeswell‐knownportnumbers relevanttoMultiVOIPoperation.

PortNumberAssignmentList

Function PortNumber

telnet 23

tftp 69

snmp 161

snmptray 162

gatekeeperregistration 1719

H.323 1720

SIP 5060

SysLog 514

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