Faxback Port Server - Manual Manuale Utente Scaricare il pdf (Pagina 33)

Chapter8– Fax Routing

CallFlowOverview

InboundFaxes

1. TheMediaGatewaysendsaSIPINVITEtooneofthePortServerstoestablishacall.

2. ThePortServerconsultsitslistofConnectionServers–theReceive‐routingGroup.

3. ThePortServercontactsthelowest‐costConnectionServerandpassesitthecall’sdestinationDIDto



determineifthatConnectionServerhasaloggedinaccountwhocantakethecall.Ifnot,orintheevent

ofanerror,thePortServertriesthenextConnectionServerinitslist.

4. Oncetheaccountisfound,theConnectionServernotifiestheaccount’sclientthatit

hasaninboundfax,

andgivesittheaccessURLofthePortServer.

5. TheclientconnectstothePortServer.Theconnectioniscomplete,andthefaxbegins.

6. Uponcompletion,thePortServereitherlogstheCDRrecordtothedatabase,orpassesthatdatabackto

theConnectionServerforittolog.

OutboundFaxes

1. TheclientisalreadyloggedintoaConnectionServer.

2. TheclientsendsarequesttotheConnectionServertosendafaxtoaspecificnumber.

3. TheConnectionServerconsultsitsSendRoutingtabletodeterminewhichPortServertosendthefax.

Onlytherulesbelonging

tothataccount’sRuleGroupareused.Thenumbermaybeblockedifitmatches

ablockrule.

4. Havingmadeitsroutingdecision,theConnectionServergivestheclienttheaccessURLofthePortServer.

Additionally,theConnectionServernotifiesthePortServerthatithasauthorizedthat

particularfax.

5. TheclientconnectstothePortServerandsendsthefax.

6. ThePortServersendsaSIPINVITEtotheMediaGateway.

7. Uponcompletion,thePortServereitherlogstheCDRrecordtothedatabase,orpassesthatdatabackto

theConnectionServerforit

tolog.

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Faxback Port Server - Manual Manuale Utente Pagina 33