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1、IP Communications Planning and Design Case Study,VVT-2007,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwidth-Related DesignMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,“Bucks R Us”:A Regional West Coast Bank,San Francisco headquarters5000 em
2、ployees250 branches,San Francisco HQ:800 Staff150 Branches with 8 Staff or Less75 Branches with 24 Staff or Less25 Branches with 48 Staff or Less,Customer Requirements,No changes in the existing dial planCoexist with PBX at HQ during migrationMessaging between Cisco Unity and the legacy voicemail sy
3、stemsMigrationGradual migration at HQFlash cut at branch,Proposed High Level Design,Centralized call processingQSIG integration with HQ PBXCentralized Unity Voicemail MessagingVPIM network integration between Unity and legacy voicemailDID trunks,DSP,MoH and SRST in all branches,Proposed High-Level D
4、esign,Branch Office,Headquarters,Gateways,Rest ofWorld,Cisco Unity,CiscoCisco CallManagerCluster,SRST Router/Gateway,.,PBX,PSTN,IP WAN,Branch Office,SRST Router/Gateway,Design Assumptions,Based on the functionality in:Cisco CallManager 4.1(x)Unity 4.0(x)VoicemailBHCA under six calls per user20 users
5、 per conference bridge portHighly available LAN in HQHighly available DNS and DHCP servicesNTP structure in place,Infrastructure Requirements,QoS enabled infrastructurePHB EF for RTPPHB CS3 for voice signalingMultiple egress queue LAN modules Sub 40 ms roundtrip timer in HQ LAN/MAN100 Mbps min bandw
6、idth in HQ LAN/MANLLQ-enabled WAN,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwidth-Related DesignMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,c6500#2,Core/Distribution,TFTP/MoH,Publisher,Centralized Cisco CallManager Cluster,c6500#1,Subscr
7、iber#12500 Phones,Subscriber#22500 Phones,MCS-7845 Servers,Clustering Redundancy,Assign devices to device pools based on the last digit of the MAC addressDistribute sites across the two Cisco CallManager groups,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwidth-Related Desig
8、nMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,Headquarters PSTN and PBX Gateways,LEC,PBX,IXC,PSTN,CMM,CMM,DID Trunks;PRI/NI-2 for Calling Name Display,PBX Trunks;QSIG for Supplementary Services,Inter eXchange Carrier(IXC)Trunks,2x,3x,2x,3x,2x,2x,QSIG Between CCM and
9、 PBX,QSIG Enhances CCM and PBX InteroperabilityAlerting and connected name displayPath replacementMessage Waiting Indicator(MWI)Call completion(call back),QSIG,T1,MGCP,Physical Topology,Smallc2801,Mediumc2821,Largec3825,HQ,Fax,Frame Relayand T1 WAN,Fax,Fax,Fax,PSTN,Gateway Protocol:H.323 vs.MGCP,Sel
10、ecting PSTN Trunks,Branch Overview,Small:8Cisco 2801Frame Relay128 Kbps CIR3 VoIP Trunks2 Analog DID Trunks1 BRI(Outbound)MGCP1 Fax2 Conf Bridges,Medium:24Cisco 2821Frame Relay512 Kbps CIR onT1 Integrated Access8 VoIP TrunksFractional PRIH.3232 Fax4 Conf Bridges,Large:48Cisco 3825Dual T1 Links16 VoI
11、P Trunks1 PRI TrunkMGCP4 Fax8 Conf Bridges,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwidth-Related DesignMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,Dial PlanOverall Customer Requirements,Common PSTN access code(9)Local PSTN calls use th
12、e branch gatewayInbound DID calls arrive through the branch gatewayAll other calls use HQ IXC trunksThree classes of service:Internal and localLong distanceInternational,Intra-site calling via four digit dialingInter-site calls dialed as ten digit PSTN calls but use IP WAN,San Francisco,Seattle,L.A.
13、,San Jose,CMCluster,.,Dial PlanDirectory Number Range Selection,DN is last four digits of DID numberDNs are unique within a branch but overlap between branches,San FranciscoHeadquarters,SeattleBranch Office,L.A.Branch Office,San JoseBranch Office,Cisco CallManagerCluster,.,DN Range:20 xx,DN Range:10
14、 xx,DN Range:20 xx,DN Range:1xxx,Partitions and Calling Search Spaces Concepts(For Details Refer to VVT-3002),PartitionA,911,900X,99XX,8001,PartitionB,9.2-9XXXXXX,9.2-9XX2-9XXXXXX,9.011!,7 Transform Mask:2001,2002,2001,2000,5000,8000,Lines(Directory Numbers),TranslationPatterns,RoutePatterns,Special
15、 Numbers(MeetMe,CallPickup.),Voice Mail Ports,Application Numbers(CTI Route Points,CTI Ports),RoutePatterns,Phones,Lines,Gateways,Applications,Dial PlanIntra-Branch and Branch-to-Branch Calling,Calling Search Spaces,Partitions,System_P,914156131XXX Mask:XXXX,9194982310XX Mask:XXXX,9140852610XX Mask:
16、XXXX,Delivers 1000,LAX_CSS,SJC_CSS,All IP Phones DNs,LA,.,SJ,SJC_P,1000,LAX_P,1000,949-823-1000,To 1007,408-526-1000,To 91-408-526-1000,Dial PlanPSTN Calls(Per Site Construct),LAXRG,LAX_CSS,PSTN,LAPhones,IXCRG,PSTN,LAGateway,HQ IXCTrunks,2nd Choice,1st Choice,Calling SearchSpaces,Partitions,RouteLis
17、ts,RouteGroups,Devices,LAX-LORL,LAX-LDRL,LAX_P,9.2-9XXXXXX,9.2-911,911,9.12-9XXXXXXX,9.011!,9.011!#,LAX DNs,SFORG,IXCRG,HQ LECTrunks,HQ IXCTrunks,2nd Choice,1st Choice,PBXRG,PSTN,PSTN,Dial PlanHeadquarters(San Francisco),SFO-LORL,SFO_CSS,HQPhones,SFO-LDRL,PBXRL,PBXTrunks,PBX,Calling SearchSpaces,Par
18、titions,RouteLists,RouteGroups,Devices,SFO_P,9.2-9XXXXXX,9.2-911,911,9.12-9XXXXXXX,9.011!,9.011!#,SFO DNs 1XXX,1XXX,Loop Protection,SFOPhones,PBX,SFO_CSS,SFO_P,SFO_PBX1XXX,PBX_CSS,SFO_P,1000,1001,Class of Restriction:CoR Device and Line CSS Approach,Line,COR_CSS,LAX_CSS,Device,Resulting CSS,The CSS
19、of the Device Has an Effect on All Calls Made from that Phone,COR_P,LAX_P,9.2-9XXXXXX,9.12-9XXXXXXX,9.011!,9.011!,COR_P,LAX_P,9.2-9XXXXXX,9.12-9XXXXXXX,9.011!,9.011!,Class of Restriction250 Device CSS+3 Line CSS=253 CSS,COR1_CSS,COR1_P,SEA_CSS,SEA_P,9.2-9XXXXXX,9.12-9XXXXXXX,9.011!,COR2_CSS,COR2_P,9
20、.011!,COR3_CSS,COR3_P,COR2_P,9.011!,9.12-9XXXXXXX,Device CSS,Line CSS,SJC_CSS,SJC_P,9.2-9XXXXXX,9.12-9XXXXXXX,9.011!,LAX_CSS,LAX_P,9.2-9XXXXXX,9.12-9XXXXXXX,9.011!,248_CSS,249_CSS,250_CSS,One Device CSS and Partition per Branch,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwi
21、dth-Related DesignMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,Regions and Codec,WAN,Region:HQ,Region:SEA,G.711,G.711,G.729,Region:LAX,G.711,Region:SJC,G.711,G.729 Bandwidth Usage,No cRTP:,IP,UDP,RTP,Payload,+8+12+20=60 Bytes,60 bytes/packet x 50 PPS x 8 bits/byte=2
22、4 Kbps 22 bytes/packet x 50 PPS x 8 bits/byte=8.8 Kbps,cRTP,Payload,2+20=22 Bytes,With cRTP:,Call Admission Control(CAC)Locations,Why CAC?Boat capacity=five personsWhen the sixth person climbs aboard everybody gets wet!,Auto-Alternate Routing(AAR),IP WAN,PSTN,HQ,Location SJC,Location SCL,Location,Ma
23、x BW=24 kbps,Max BW=48 kbps,STOP,DN:1000Ext.Phone Mask:415-613-1000,External Phone Number MaskConverts from Internal DNto External DID,AAR-Group on the LineDetermines How theNumber Is Dialed,AAR CSS Determines WhichGW Is Used to Route theCall to the PSTN,PSTN,Single AAR-Group:Reuse Device CSS,SJCRG,
24、SJC_CSS,SJCPhones,IXCRG,SJCGateway,HQ IXCTrunks,2nd Choice,1st Choice,Reuse as AAR CSS,Predot Discard,Calling SearchSpaces,Partitions,RouteLists,RouteGroups,Devices,PSTN,SJC-LORL,SJC-LDRL,SJC_P,9.2-9XXXXXX,9.2-911,911,9.12-9XXXXXXX,9.011!,9.011!#,99.1XXXXXXXXXX,991.408XXXXXXX,PSTN,Fax Relay,FAX Rela
25、y,CMM,VG248,Fax Relay does not support super G3 fax speedsDisable ECM on fax machine to cap speed at 14400 bps,Fax Configuration,Voice Codec Determines Fax Speeds,Region:SFO,G.729 Fax=7200 bps,Region:SJC,WAN,PSTN,Fax,G.711 Fax=14400 bps,|DTMF tone duration(default:100ms)|Echo cancelling pol-IC)|Hook
26、 flash timer|Fax relay maximum speed|t)|Hook flash reject p|(default:14400 bps)|Distinctive ringing|-|l|Passthrough signali|voice bandwidth|Passthrough codec|2400 bps|Fax relay payload s|4800 bps|Fax relay maximum s|7200 bps|Fax relay playout d|9600 bps|-|12000 bps|14400 bps|,mgcp fax rate voice,Cis
27、co IOS MGCP,VG248,dial-peer voice 1 voip fax rate voice,Cisco IOS H.323,Fax,Fax,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwidth-Related DesignMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,Communications Media Module,PSTN,Branch Office,Cisc
28、o Unity,Transcoding,Gateway,Conferencing,Headquarters,SJC,LAX,MoH to 239.1.1.1,MoH to 239.1.1.1,MoH to 239.1.1.1,Cisco IOS Music on Hold Resource,Cisco IOS MoH is G.711onlyNeed to place CCM MoH resource in separate region to force G.711 to all sites,Multicast Routing Not Required,IP WAN,MoH Multicas
29、t Address Usage,ccm-manager music-on-holdinterface Loopback0 ip address 10.1.1.1.255.255.255.255interface FastEthernet0/0 ip address 172.21.51.143 255.255.255.192call-manager-fallback ip source-address 172.21.51.143 port 2000 max-ephones 1 max-dn 1 moh music-on-hold.au multicast moh 239.1.1.1 port 1
30、6388 route 172.21.51.143 10.1.1.1,Media Resource Groups(MRG)for MoH,Multicast MRG,Unicast MRG,Conferencing“Conference Initiator”Concept,L.A.,Cisco CallManagerCluster,IP WAN,A,C,B,San Francisco,1.A Calls B,B Conferences C,MRGL_LAX,MRG_MoH_MC,MOH_CCM1,MRG_LAX,CFB001122334455,MRGL_HQ,MRG_MoH_UC,MOH_CCM
31、1,MRG_HQ,CFB005566778899,DSP Capacity Planning,NN/16=Number of DSPs16 G.711 calls per DSPEight G.729 or fax relay calls per DSPEight conferences per DSP,Use the DSP Calculator on CCO:http:/,PDVM2-NN,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwidth-Related DesignMedia Resou
32、rces DesignVoicemail DesignSRST DesignSecurity Design and Operation,Unity Assumptions,Voicemail onlyFailoverDedicated exchange for Unity Message StoreDedicated domain for Unity(DC/GC on exchange)G.711 codec for voicemails,Unity Sizing,72 portsMessage storeG.711=8 KB/secondAverage message size=40 sec
33、Number of users=5000Average number of messages per user=158 KB/sec x 40 sec x 5000 x 15=24 GB total message store,c6500#2,Core/Distribution,TFTP/MoH,Publisher,Unity Voicemail Design,c6500#1,Subscriber#12500 Phones,Subscriber#22500 Phones,Unity Primary72 Ports,Unity Failover72 Ports,Exchange,Unity Co
34、nfiguration,Pilot number is 8000Message Waiting Indicator(MWI)MWI on 8089MWI off 8088Voicemail portsUnity Primary 8001-8072Unity Failover 8101-8172,PSTN,Cisco CallManager,IP WAN,IP Phones,SQLDirectory,Unity Server,Router/GW,Unity Call Flow with Microsoft Exchange,MessageStore,Exchange,Unity Failover
35、,Cisco CallManager setup to automatically route calls to failover when primary offlineForward each UM port,no answer to first failover UM port,UnityPrimary,UnitySecondary,Data Store(SQL),Data StoreSYNC,8001,8002,8101,8102,Call Forwardedon No Answerby Cisco CallManager,Voicemail Hunt List and Line Gr
36、oups,Unity Failover Line Group,Unity Primary Line Group,Voicemail Number Plan,DN is last four digits of DID number and overlap between branchesMailbox IDs are unique,Unity,MB Range:949-823-10 xx,MB Range:408-526-20 xx,MB Range:415-613-1XXX,MB Range:425-468-20 xx,Seattle,L.A.,San Jose,San Francisco,U
37、nity Mailbox IDs:Ten Digits,Four digit DNs not uniqueUse ten digit DID as Unity mail box IDPer branch VM Profile for four ten digit expansionNaming convention:XXX_VMP,MWI Multi-Tenant Configuration,Service Parameter Change for MWI Translation from Ten to Four Digit,Branch Translation Patterns,Transl
38、ates the ten digit mailbox ID to a four digit extensionRequired for transfers from voicemail and MWI,What Is Voice Profile for Internet Mail(VPIM)?,VPIM is an IETF standardVPIM defines the format of the voice messageVPIM is based on the RFC822/MIME message formatVPIM messages can be sent/received th
39、rough any ESMTP transport providerVPIM allows text,fax and vCard attachments in the Voice messageVPIM sender/recipient has email address in the form of MailboxFQDNfor example:,Unity to Legacy VMVPIM,Exchange,Unity,Cisco,Microsoft,3rd Party,Legacy VM,MAPI,VPIM,Partner Exchange Serverwith Unity Voice
40、Connector,VPIM=ESMTP+MIME,Unity to Legacy VMTen Digit Blind Addressing,Unity users dial ten digitsDeliver to local unity mbox if ten digit match foundIf no matching unity mbox then VPIM location will match,Unity/Exchange,Legacy VM,ESMTP,To:,Agenda,Customer OverviewCluster DesignSite Design Dial Plan
41、 DesignBandwidth-Related DesignMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,Central Site,Remote Site,Cisco CallManagerCluster,SRSTRouter,IP WAN,PSTN,Survivable Remote Site Telephony(SRST)Mode of Operation,Requirements:Maintain user dialing experienceMaintain basic V
42、M functionality where possible,SRSTCore Configuration,ccm-manager fallback-mgcp dial-peer voice 1 pots destination-pattern 9T port 1/0/0call-manager-fallback ip source-address 10.10.10.10 port 2000 max-ephones 24 max-dn 48voicemail 914085554800call-forward busy 914085554800call-forward noanswer 9140
43、85554800,Fall Back from MGCP to H.323NOTE:Calls in Progress Are Dropped when Switching Protocol,External and Interbranch Calls Are Routed to the PSTN,Dial This Number When the Message Button Is Pressed,CFNA/CFB to This Number,Redirecting Number Must Be Transported by PSTN in Order for Unity to Play
44、the Correct Personal Greeting,Agenda,Customer OverviewCluster DesignSite Design Dial Plan DesignBandwidth-Related DesignMedia Resources DesignVoicemail DesignSRST DesignSecurity Design and Operation,Security,Operating system protectionEnable only required servicesToll fraud protectionProtect IP phon
45、es,Operating System,Cisco CallManagerMaintenance security patches posted to C on the third Tuesday of every monthCritical security patches posted to C 24 hours after the Microsoft releaseUnityDownload patches from Microsoft;consult C for a list of test patchesInstall Cisco Security AgentInstall McAf
46、ee,Symantec,or Trend Micro ServerProtect anti-virus protection,The Most Critical Security Prevention Measures,IPT and PSIRT Patch Notification,IPT http:/,Product Security Incidence Response Team(PSIRT)http:/,Disable Unnecessary Windows Services,80%of attacks against Windows are targeted at IISStop a
47、nd set to manual startup of IIS and WWW on the following:TFTP/MoH serverTwo subscribers,Enable Only Required Cisco CallManager Service,PublisherDatabase Layer MonitorRIS Data CollectorCDR InsertTFTP/MOHDatabase Layer MonitorRIS Data CollectorMOH Audio Translator IP Voice Media StreamingTFTPSubscribe
48、rsCisco CallManagerDatabase Layer MonitorRIS Data Collector,Many commonly exploited area codesThe following list is just a start and may not apply to your organization:Research the problem for your particular area,Filter Toll Numbers from Dial Plan,Protect the Phone,PC port“Settings”buttonSpeakerpho
49、neWeb access,Disabling Web Access Breaks XML Pushing Apps,Disable,Q and A,Recommended Reading,Cisco IP Telephony:Planning,Design,Implementation,Operation,and OptimizationISBN:1587051575,Available On-Site at the Cisco Company Store,Complete Your Online Session Evaluation,Win fabulous prizes;Give us y
50、our feedback Receive ten Passport Points for each session evaluation you completeGo to the Internet stations located throughout the Convention Center to complete your session evaluationDrawings will be held in theWorld of SolutionsTuesday,June 20 at 12:15 p.m.Wednesday,June 21 at 12:15 p.m.Thursday,
