Unified. Simplified. Unified Communications Launch 2007

Unified. Simplified. Unified Communications Launch 2007

VoIP Topologies and Interoperability Unified Communications Microsoft Corporation Unified. Simplified.

Workbook and Lessons Voice Deployment Topologies A: Direct PSTN connection B: Tie-line off existing TDM PBX C: PRI off existing IP/PSTN gateway D: Greenfield 21% 1% 57% Unified. Simplified. 21% A B C D

Direct PSTN Connection 21% OCS PSTN Unified. Simplified. PSTN phone Around 1/5 of early adopter customers Great for quick lab/pilot setup – no PBX interop! Good match for Centrex and PBX if you can swing existing numbers over to new PRI, otherwise typically need new numbers

Tie-line off existing TDM PBX PBX Phone OCS 2007 PRI(s) SIP/PSTN Gateway PSTN Unified. Simplified. PSTN phone 57% Most Common – nearly 2/3 of early adopter customers Requires integration w/ existing telephony infrastructure for call routing and PRI port Gateway number manipulation typically needed

PRI off existing SIP/PSTN Gateway IP PBX Phone OCS 2007 Existing IP PBX PRI(s) Existing SIP/PSTN Gateway SIP/PSTN Gateway PSTN Unified. Simplified. PSTN phone 21 % Around 1/5 of early adopter Customers Some pushback on B2B gateways Vendors able to certify IP PBX for Direct SIP connectivity; none available yet Call Manager does not require Cisco gateway, but several are certified

Greenfield Fax, Analog/ ISDN Devices OCS 2007 Small PRI(s) PBX SIP/PSTN Gateway PSTN Unified. Simplified. 1% A couple of early adopter deployments Typically requires purchase/config of small PBX Possibly better match for small customers with minimal telephony requirements

Voice – lessons learned General AD/Contacts should be RFC3966. ABS can normalize for galContacts.db and keyed numbers msRTCSIP-line attribute for RNL Quality of headset / device prominent factor OCS approved: http://technet.microsoft.com/en-us/bb970310.aspx RCC with OC 2007 does not include CSTA conferencing – may impact legacy LCS customer WMI needed to modify some config items QoS vsUnified. QoE Simplified. QoE Monitoring Server – key for troubleshooting

Per User Calculation Media Type Bandwidth Needed Audio 45 Kbps Video 250 Kbps Data 45 Kbps Signaling 10 Kbps Total 350 Kbps per direction Type of usage is important when planning Media Stack adjusts to available bandwidth every 5 seconds Consider the whole path end-to-end Unified. Simplified.

QoS Support OCS 2007 does not require DiffServ, RSVP or CAC We do work within a DiffServ environment DSCP marking by the end-points By default, end-points mark all media Audio: Expedited Forwarding Video: Class 3 of Assured Forwarding DSCP marking can also be tuned through policy Windows Vista has centralized policy enforcement Unified. Simplified.

Having the Edge Conversation 1. Meet with various 2. 3. security/DMZ/Firewall teams Explain Protocols, ports, roles, security Repeat 1&2 Translate diagram at left into firewall rules include ports, direction, etc Unified. Simplified.

Software-Powered VoIP Architecture Deployment scenarios for today Scenario When to Deploy All the features of the existing OCS PBX, plus all features of OC Co-existence and OCS Pilot the future with specific groups: OCS Highly collaborative Standalone employees Mobile employees Unified. Simplified. Infrastructure Required Modern PBX that can natively interoperate with OCS PSTN Gateway or existing TDM or Hybrid-IP PBX.

Software-Powered VoIP Architecture OCS2007 2007 Co-existence Deployment scenario: OCS Coexistence Simultaneous ringing Interoperability with PBX systems Users have both OC and legacy phone Existing Existing PBX PBX Mediation Server SIP/PSTN Gateway SIP Utilize existing PBX capabilities Receptionist and boss-admin needs Emergency call requirements Analog lines (e.g., fax machines) Voicemail OCS 2007 Inbound Routing Outbound Routing Voicemail Routing Unified. Simplified. IM, Presence, Audio, Video, Conferencing, IVR

Software-Powered VoIP Architecture Deployment scenario: OCS OCS 2007 2007 Stand-Alone Standalone Migrate groups to Software-powered VoIP Typically information or mobile workers All users have IM and presence Standard PBX migration procedures Common PBX network interfaces PBX numbering plans No PBX upgrade required Existing Existing PBX PBX Mediation Server SIP/PSTN Gateway SIP OCS 2007 Inbound Routing Outbound Routing Voice Mail Routing Unified. Simplified. IM, Presence, Audio, Video, Conferencing, IVR

Mediation Server Connects OCS and SIP/PSTN Gateway or IPPBX Front-end of the Microsoft OCS voice world Intermediate signaling and call flow Manage innovative elements of the SIP transaction Transcode RTP flows from G.711 to RTAudio and SIREN Act as an ICE Client for PSTN-originated calls Enables OCS to Provide IP telephony Interconnect with the legacy PSTN Unified. Simplified.

OCS 2007 Voice Components UC endpoints Public IM Clouds MSN AOL Yahoo QOE Monitorin g Archiving CDR DMZ Data Audio / Video SIP Inbound Inbound Routing Routing Outbound Outbound Routing Routing Remote Users Voice Voice Mail Mail Routing Routing Access Server Front-End Front-End Server(s) Server(s) (IM, (IM, Presence) Presence) Conferenci Conferenci ng ng Server(s) Server(s) Exchange 2007 Server UM Mediation Server Federated Businesses Backend Backend SQL SQL server server (SIP-PSTN GW) Voicemail Unified. Simplified. PSTN PRI PBX Active Directory

SIP/PSTN Gateways Basic Media Gateway Model Type Availabilit y Hybrid for OCS Hybri d Fall 2007 Mediant 2000 Basic Today Hybrid Hybri d Winter 2007 1000 Basic Oct 16th 2000 Basic Oct 16th Dialogic 4000 Hybri d Oct 16th Quintum Tenor DX Basic Oct 16th Quintum Hybrid Hybri d Winter 2007 Vendor Standalone appliance Aculab Supports TDM features Audiocode SIP over TCP s RFC 3261 compliant SIP Audiocode s G.711 Dialogic Works with Mediation ServerDialogic Hybrid Media Gateway Media Gateway appliance Collocated with Mediation Server Unified. Simplified.

Gateway-Only Configuration Unified. Simplified.

Native IP-PBX Interoperability Unified. Simplified.

Implementing PBX Integration Standalone Gateway Direct SIP Unified. Simplified. Co-Existence Dual Forking Dual Forking with RCC

Q&A Unified. Simplified.

Resources Integrating Telephony with OCS 2007 http://www.microsoft.com/uc/products/default.ms px Visit the OCS 2007 Tech Center http://technet.microsoft.com Gateways qualified with Office Communications Server http://go.microsoft.com/fwlink/?LinkID 87482 Unified. Simplified.

Unified. Simplified.

2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. This document may contain information related to pre-release software, which may be substantially modified before its first commercial release. Accordingly, the information may not accurately describe or reflect the software product when first commercially released MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION. Unified. Simplified.