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深入探讨OCS2007MediationServer及PSTNGateways-Microsoft.ppt
Communications Server 2007 Standalone – 往外撥打 Call made from Office Communicator Possibly to another UC user Communications Server 2007 routes call to Mediation Server Mediation Server passes call to Media GW Media GW places PSTN call Communications Server 2007 Standalone – Call Forward Call routed from PSTN hits Media GW Media GW converts to SIP call Communications Server 2007 forwards call to different UC user Based on original called-party’s preference Office Communicator “rings” Communications Server 2007 Standalone – Call Transfer Office Communicator “rings” – Callee “picks up” Called party decides to transfer to another UC user Blind or attended transfer Caller speaks to new called party Communications Server 2007 Standalone – Conference UC user decides to escalate two-party call to ad-hoc conference call Picks conference participants from contact list, based on presence Conference Server calls out to new participants Some via PSTN Original call is transferred to the Conference Server Communications Server 2007 Coexistence Scenario – 往內撥打 Same as “Standalone” call flow, except: Call hits PBX, not Media GW Call is forked by PBX to UC User decides to pick call up on either UC or phone Communications Server 2007 Coexistence Scenario – 往外撥打 Same as “Standalone” call flow, except: Call hits PBX, not Media GW Call is forked by Communications Server 2007 to PBX User decides to pick call up on either UC or phone Communications Server 2007 Coexistence Scenario – Call Forward Same as “Standalone” call flow, except: Call hits PBX, not Media GW Call is forked to UC – Communications Server 2007 forwards call Based on user profile Deflected user decides to pick call up on either UC or phone Communications Server 2007 Coexistence Scenario – Call Transfer Same as “Standalone” call flow, except: Call transfer to second UC user invokes dual fork call to PBX extension Second UC user picks up on either Office Communicator or phone Communications Server 2007 Coexistence Scenario
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