1. © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 1 Design Clinic: Cisco UC Architecture for Corporate Branch Offices Tim Wellborn – CCIE #15397 May 7, 2008

2. © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 2 Point of this Session: Two solutions – Same destination

3. Cisco Public 3 © 2007 Cisco Systems, Inc. All rights reserved. Customer Scenario Standalone Approach Centralized Approach Summary Agenda

4. Cisco Public 4 © 2007 Cisco Systems, Inc. All rights reserved. Primary Focus Voice (Call Control) Voicemail

5. Cisco Public 5 © 2007 Cisco Systems, Inc. All rights reserved. Customer Scenario Branch Offices X number of sites – might acquire 10 more 12 – 75 people each Couple just 2 users Fax or two, some analog trunks, larger sites have PRI Corporate IT/Telecom (help) manage branch systems Standardize (features, components) 4-digit dialing Lower Costs / Reduce Long-Distance Migration – Slow rollout Interoperate w/ HQ PBX

6. Cisco Public 6 © 2007 Cisco Systems, Inc. All rights reserved. Devils in the details High level requirements can mean more than one thing Nip 4-digit dialing now – look to Universal Dial Plan How standard? Literally one-size fits all or just similar technology? Willing to adjust WAN/other to support Voice goals? Interop – define please

7. Cisco Public 7 © 2007 Cisco Systems, Inc. All rights reserved. More devilish details Call Control Single PBX? Or networked independent? Voicemail All on central? Or each site have own Voicemail? If each have own – still be able to transfer/forward to central? Between branches? Network with legacy VM at HQ? Well explore above

8. Cisco Public 8 © 2007 Cisco Systems, Inc. All rights reserved. Approach One

9. Cisco Public 9 © 2007 Cisco Systems, Inc. All rights reserved. Approach One Per site Voice and Voicemail Cisco Unified Communications Manager Express Cisco Unity Express

10. Cisco Public 10 © 2007 Cisco Systems, Inc. All rights reserved. How CUCME/CUE fits criteria Buy as you grow Leverage H.323 for inter-site calling Can use variety of ISR sizes – still standardized CUE for per-site VM Remote management by central support team Use Voice Gateway to connect to HQ PBX

11. Cisco Public 11 © 2007 Cisco Systems, Inc. All rights reserved. CUCME/CUE - Step One 1861/2800/3800 size to # phones 1861 (8) to 3845 (250) PSTN BRANCH A Local phones CUE licensed for # mailbox AIM-CUE NME-CUE PSTN trunks Analog VIC PRI VWIC FAX

12. Cisco Public 12 © 2007 Cisco Systems, Inc. All rights reserved. CUCME/CUE – Add branch PSTN BRANCH A Configure dial-peers so can call each other Separate Voicemail Voice/Data Network PSTN BRANCH B CUCME/CUE FAX

13. Cisco Public 13 © 2007 Cisco Systems, Inc. All rights reserved. CUCME/CUE – Add HQ PSTN BRANCH A More dial-peers Still separate VM Voice/Data Network PSTN BRANCH B V Voice Gateway WAN router HEADQUARTERS Voice CUCME/CUE FAX

14. Cisco Public 14 © 2007 Cisco Systems, Inc. All rights reserved. Directory Gatekeeper - Network Scaling Small Network - Gateways only Medium Network - Multiple Gatekeepers Medium-Large Network - Multiple Gatekeepers and a Directory Gatekeeper Small Network - simplified with a Gatekeeper GatewayGatekeeperDirectory Gatekeeper

15. Cisco Public 15 © 2007 Cisco Systems, Inc. All rights reserved. H.323 With RAS Registration, Admission and Status Gatekeeper CUCME ASystem B Address Translation: Every GW needs to know only about the GK, not about all other GWs IP QoS Network H.225 (Q.931) Call Setup (TCP) RTP (UDP) H.245 Call Control (TCP) H.225 RAS (UDP) H.225 RAS (UDP)

16. Cisco Public 16 © 2007 Cisco Systems, Inc. All rights reserved. Fancy Stuff Voice Networking Make dialplan manageable Provide redundancy to dialplan component SOLUTION: Cisco Gatekeeper Voicemail Networking Network CUE systems Network w/ central Avaya SOLUTION: Cisco Unified Messaging Gateway

17. Cisco Public 17 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Unified Messaging Gateway Hub in a unified messaging network, centralizes message routing and rules Supports all Cisco Unified Messaging solutions Enables scaling of a unified messaging network as required by branch offices or enterprises Simplifies configuration and management tasks Helps customers migrate from legacy voicemail systems to Cisco Unified Communications solutions Messaging Challenges Today Cisco Unity Connection CUE with SRST or CME Cisco Unity Cisco Unified Messaging Gateway Solution Unified Messaging Network Cisco Unity Cisco ISR with CUE Each UMG Scales up to 1,000 CUEs Central CUE (Upto 10 sites) CME UMG

18. Cisco Public 18 © 2007 Cisco Systems, Inc. All rights reserved. CUCME/CUE Final Solution PSTN BRANCH A Voice/Data Network PSTN BRANCH B V Voice Gateway WAN router HEADQUARTERS UMG GK Voice CUCME/CUE Build Slow Dial anyone Share VM Manage centrally FAX

19. Cisco Public 19 © 2007 Cisco Systems, Inc. All rights reserved. OPTION - CUCME with centralized voicemail PSTN BRANCH A Voice/Data Network PSTN BRANCH B CUCME WAN router HEADQUARTERS Voice CUCME Unity or UConn MWI Relay FAX

20. Cisco Public 20 © 2007 Cisco Systems, Inc. All rights reserved. Approach Two

21. Cisco Public 21 © 2007 Cisco Systems, Inc. All rights reserved. Approach Two Ciscos Centralized Call-processing model Cisco Unified Communications Manager Cisco Unity (or Unity Connection)

22. Cisco Public 22 © 2007 Cisco Systems, Inc. All rights reserved. How CUCM / Unity (or UConn) fit Criteria Single PBX single point of mangement Any call any (unless configured not to) Simpler dialplan management (dialplan itself still pain) Single VM for everyone Easy to integrate voice to 3 rd -party PBX, or number of them More 3 rd -party voicemail integrations.

23. Cisco Public 23 © 2007 Cisco Systems, Inc. All rights reserved. CUCM/Unity - Step One 1861/2800/3800 size to # phones 1861 (8) to 3845 (250) PSTN BRANCH A Local phones CUCM Unity PSTN trunks Analog VIC PRI VWIC Voice/Data Network FAX

24. Cisco Public 24 © 2007 Cisco Systems, Inc. All rights reserved. CUCM/Unity – Add branch PSTN BRANCH A BRANCH B Voice/Data Network Move/Add/Change to add a site FAX Can drop in remote by adding phones Add gateway as/when needed BRANCH C V

25. Cisco Public 25 © 2007 Cisco Systems, Inc. All rights reserved. CUCM/Unity – Integrate HQ PSTN BRANCH A PSTN BRANCH B Voice/Data Network FAX V Voice Gateway HEADQUARTERS Voice

26. Cisco Public 26 © 2007 Cisco Systems, Inc. All rights reserved. CUCM/Unity – Build Out HQ PSTN BRANCH A PSTN BRANCH B Voice/Data Network V Voice Gateway HEADQUARTERS FAX Add phones at HQ

27. Cisco Public 27 © 2007 Cisco Systems, Inc. All rights reserved. PSTN BRANCH A PSTN BRANCH B Voice/Data Network V Voice Gateway HEADQUARTERS FAX CUCM/Unity – Final Solution

28. Cisco Public 28 © 2007 Cisco Systems, Inc. All rights reserved. What about use existing VM only? Not really possible with CUCME No SMDI – low chance QSIG (no release transfer) For CUCM have following options 1)Dual connect 3 rd -party VM Box not likely to be set up for dual integration 2)Use QSIG link from CUCM to PBX

29. Cisco Public 29 © 2007 Cisco Systems, Inc. All rights reserved. Criteria that immediately drive Centralized True UM Requires Unity w/ customers Exchange or Notes Does not require centralized CUCM Company-wide Presence Requires centralized CUCM w/ CUP agents any location Contact Center Requires centralized CUCM and UCC Express or Enterprise, possibly CVP

30. Cisco Public 30 © 2007 Cisco Systems, Inc. All rights reserved. Q and A

31. Cisco Public 31 © 2007 Cisco Systems, Inc. All rights reserved.