Faxback Port Server - Manual Manuale Utente Scaricare il pdf (Pagina 6)

Scalability&Reliability

Bydefault,theConnectionServerwillload‐balanceamongsttheconfiguredPortServers.PortServerscanalsobe

broughton‐lineanddynamicallyaddedtoroutinggroupsincaseoffailure.

BothConnectionServersandPortServerscanbedisabledformaintenancewithoutdisruptingconnectedclientsor

theirfaxes.Whiledisabled,

thatparticularserverwillrefuseanynewfaxes,andanyloggedinclientswillbe

migratedtoanotherConnectionServer.Anyfaxesinprogresswhentheserverisdisabledwillfinishwithout

interruption,butnewfaxeswillberoutedtoalternateservers,ifavailable.

InfrastructureRequirements

IIS/SQLServer

AnyversionofIISthatsupportsASP.NET2.0issufficienttoruntheHTTPSProxy.

AMicrosoftSQLServerversion2000oraboveisrequiredforthePortServerandBillingdatabases.Forsmaller

installations,MSDEorSQLServerExpressversionsaresufficient.

SIP+T.38media gateway

ThePortServermustbeconnectedtomediagatewaysthatsupportSIPandT.38.Foroutboundfaxes,themedia

gatewaymustre‐INVITEforT.38ifafaxisdetected.Forinboundfaxes,thePortServerwillimmediatelyre‐INVITE

forT.38.

EachPortServercanbeconfiguredtousea

SIPproxyinsteadusingaper‐PortServerusernameandpassword.

EachPortServercanbeconfiguredtosendREGISTERrequeststoaSIPregistrar.

Mediagatewaysthatareknowntoworkinclude(butarenotlimitedto):

• AudioCodesTrunkPackandMediantseries

• MostCiscorouters

T.38

trafficisexpectedtoconsumeapproximately60kbpsperactivefaxport.

UpstreamSIP TrunkingProvider

APortServercanbeconfiguredtouseanupstreamSIPtrunkingproviderinsteadofamediagateway.Insurethat

theupstreamprovidersupportsend‐to‐endT.38forreliablefaxing.Itisalsoimportanttohavealow‐latencylink

(lessthan50msround‐trip)totheprovider.

LAN/WANtopology

Atthistime,onlyIPv4networksaresupported.

HTTPStrafficisexpectedconsumeapproximately15kbpsperactivefaxport.

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Faxback Port Server - Manual Manuale Utente Pagina 6