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New Features Lync 2013. Peter Imhof. Integrated System. Persistent Chat. Access through unified Lync client Integrated in Lync Server Architecture Highly available Compliant Unified client Connects anywhere to persistent chat rooms Large rooms support

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New Features Lync 2013

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New features lync 2013

New Features Lync 2013

Peter Imhof

Integrated system

Integrated System

Persistent chat

Persistent Chat

  • Access through unified Lync client

  • Integrated in Lync Server Architecture

  • Highly available

  • Compliant

  • Unified client

  • Connects anywhere to persistent chat rooms

  • Large rooms support

  • Unified Lync administration

  • Disaster recovery support

  • Compliance database option available

Mirrored SQL

Lync persistent chat pool


Persistent chat (XCCOS)




Registration, presence (SIP)

persistent chat (XCCOS)


Lync FE pool

Registration, presence (SIP)

persistent chat (XCCOS)

Reverse proxy

Video conferencing

Video Conferencing

  • Prime time video conferencing

  • Built-in Front-End component

  • Software based reducing the cost of conferencing

  • Interoperable for investment protection

  • High-definition quality

  • Multiple video streams

  • Switched or pinned contacts

  • Smart cropping

  • Active speaker detection and indication

  • Support of H.264and VC-1 for third party videoconferencing and telepresenceinteroperability

New features lync 2013

How is SVC Different?

Lync 2010/Office Communications Server

Traditional Video Conferencing








Other Attendees

New features lync 2013

How is SVC Different?


  • User 1’s Lync client sends low + high res streams

  • MCU sends full stream to User 2



  • User 2 puts User 1 in full screen

  • Initially, all users are sending a single stream of video and receiving streams of up to 5 other participants




  • MCU continues to send low resolution streams to all other users

Web conferencing

Web Conferencing

  • Immersive virtual meeting

  • Innovation through software

  • Reduce cost of the network

  • Improve scale and reach

  • Lync 2013 Web App for web based meeting.

  • Application sharing, audio/video through browser plug-in

  • Microsoft Office Web Application Companion Server

  • One-click Lync meeting scheduling from Exchange OWA

Edge server


EE pool


Reverse proxy


SIP and Media traffic traffic

*New in Lync Server 2013 and Office 2013


Skype federation

Skype Federation

Microsoft Cloud

  • Lync Edge server required to enable inbound/outbound SIP traffic – the same edge server enables remote work for employees and Lync Meetings with external parties

  • Domain activated via Microsoft

  • All media and signaling encrypted over public internet

  • Can also be enabled for Lync Online

On-Premises Lync Server Deployment



(IM/P, Contacts)


Edge Server









G.722 RTP



New features lync 2013

Provision for Skype Connectivity

Go to and provision your domain

This tells our service where to send inbound messages and informs Skype & Messenger that your Lync domain is available for connectivity

Step 1:


Step 2:


Step 3:


New features lync 2013

Skype connectivity capabilities by edition

Supported clients

Lync 2013

Lync (Windows Store App)

Lync 2013 for Windows Phone 8

Lync 2013 for iOS

Lync 2013 for Android

Lync 2010

Skype for Windows 6.3+

Skype for Mac 6.3+

  • Skype end users must have a Microsoft account associated with their Skype ID

  • Update of cloud service to enable audio calling may not release concurrently with Skype 6.x

  • Carryover from Windows Live Messenger (WLM). Functional but not supported. As part of the migration from WLM to Skype, Skype 6.0 allows signing in with a Microsoft Account (i.e., the same credentials as WLM). After simply signing in to Skype with a Microsoft Account, associated WLM buddy lists automatically populate into Skype. This includes any WLM users’ federated Lync contacts. Lync customers do not need to do anything to enable this continuity of service.

New features lync 2013


Skype Federation

Skype lync authentication and contacts

Skype – Lync Authentication and Contacts

  • LiveID account types and SIP addresses

    • Microsoft Accounts:,,,, etc…

    • EASI ID (The Acronym “EASI” stands for “email as sign in” as per KB2566829)For example, a user having a mailbox in your organization can have an EASI ID

    • The EADI ID is NOT a SIP or SMTP address… It is used only for authentication.

    • If it has to be used for IM and presence, its corresponding SIP address is joe(

  • Remember the Skype – Lync Federation only works if the Skype account is signed in with the Microsoft account (LiveID)



  • Extend Lync mobile reach with UC Web Access

  • Mobile Enterprise grade unified communication

  • Single client and user identity

  • Built-in Front-End web services based on REST APIs

  • Single client for Online and On-premise, reducing the complexity of deployment

  • Active Directory based authentication

  • Optimized for battery and bandwidth usage

  • VOIP, Video over IP or PSTN callbacks.


Media gateway



Reverse proxy

Media server

Lync server

Lync push notificationservices






https (XML)

Push notification for Windows Phone

VOIP App notifications for iOS

Voice/Video over IP

Enterprise voice

Enterprise Voice

New in Lync 2013

Inter-Trunk Routing

M:N Trunk Routing

Caller ID Translation

Unassigned Number Range handling

E.911 Improvements

New Conference PSTN Dial-Out policies

Response Group Managers Roles

New Call Forwarding and Simultaneous Ringing options

Voicemail escape

Delegates Simul-Ring

Voice Services resiliency through HA/DR

  • Enterprise grade telephony.

  • Built-in component, no other server required.

  • Scale with voice like other workloads

  • Centralized management, distributed.

Introduction to lync topologies

Introduction to Lync Topologies

Single server system

Single Server System

  • Standard Edition server runs all workloads

  • No other server required to additional functionalities

  • All in one box deployment

  • Ideal for proof of concept, pilot, small and medium businesses

  • Functionality: IM, Presence, Voice, Video, Conferencing, Mobility

  • PSTN access with Gateway, Direct SIP or SIP Trunk

  • HA/DR if paired with another SE server


Optional backup Standard edition


Standard edition

Scalable server pools

Scalable Server Pools

  • Enterprise Edition Front End pool

  • Back End Server with SQL Server

  • Ideal for large and medium size businesses, regional deployment.

  • Scale up by adding up to 12 FE serversin a pool

  • Collocate Archiving DB, Monitoring DB, PChat DBs on Back End Servers

  • High Availability by FE failover and Mirrored Back End Servers

Enterprise edition front end servers



Higher scale a rchitecture

Higher Scale Architecture

  • New loosely coupled architecture and SQL Mirroring

  • Data, Presence stored and synchronized across Front-end

  • Distributed users and services across the Front-Ends

  • Built-in pool high-availability

Lync 2010 pool

8 Front-Ends, tightly coupled back end

Lync 2013 pool

12 Front-Ends, loosely coupled store


business logic




DB used for presence updates, subscriptions

Dynamic data: presence updates handled on FEs

1..8 FE


Lync 2013 ha model

Lync 2013 HA Model

Lync 2010 Pool

Lync 2013 Preview Brick Pool

10 FE + tightly coupled back end

Lync 2013 Preview (FE s+ loosely coupled Back-end store)

Blob Storage

DB used for storing “Blobs” – persisted store

SQL® Server database (DB) bottleneck – business logic

DB used for presence updates and subscriptions

Dynamic data: Presence updates handles on FEs

1-N Front End Servers

1-10 Front End Servers

  • Capacity:

  • TBD – Will be published at product release

  • Evaluating 12-20 servers per pool

  • Capacity:

  • 10 servers/pool

  • 80,000 concurrent users/pool


New features lync 2013

High Availability

Front End

Group 1

Group 2

Group 1

Group 3

  • Windows Fabric is installed on each Front End

    • Users are provisioned to a pool in Routing Groups

    • Via fabric, three replicas of routing group data are kept updated

Fabric node

Fabric node

Fabric node

User Group 1

Group 3

Group 2

Fabric node

Group 2

Group 1

Fabric node

Fabric node

Group 3

User Group 2


High availability architecture

High Availability - Architecture

  • Lync Users are automatically mapped to “Groups”

  • Each “Group” is dynamically assigned to 3 Front-end servers within a Pool (a Primary, a Secondary and a Tertiary).

  • When a user logs in, the Primary server will start servicing all of the user’s requests.

  • Changes to the user’s data (such as Contact list changes) will be synchronously replicated to secondary/tertiary as well (3 replicas).

  • If a primary server dies, then this group would fail over to the secondary. (No data loss)

  • Writes to the back-end database occur periodically (not synchronous).

  • When a server dies, all the “Groups” assigned to that server as will failover to different servers (load balancing).

High availability how does it work

High Availability – How does it work?

  • Bob is homed on FE1 (primary)

  • There are 3 copies of this user’s data: 1 primary (FE1), 2 backups (replicas in FE2, FE3)

  • User is signed in to primary

  • User’s activities, data are replicated

Pool Back-end




  • Primary goes down

  • User re-signs to one of the backups

  • Replicated data is available on FE2. User


Disaster recovery

Disaster Recovery

Pool Failure

Site Failure

  • Two pools can be “paired”

    • Backup agent on a Front End writes deltas to a DFS share

    • DFS replicates share content between Lync pools

  • Same as “pool failure”, but applied to geographically distinct pools

Disaster recovery data replication

Disaster Recovery – Data Replication

Pool 1

Pool 2

Disaster recovery pool failover

Disaster Recovery – Pool Failover

Pool pairing in Lync 2013:

Enables Active-Active mode for two properly sized pools within the same datacenter

Provides real-time persistent data replication between paired pools via Backup Service

Failover and Failback are not automated

Disaster recovery1

Disaster Recovery

Pool Failure

“Pool pairing” enables Active-Active mode for two properly sized pools within the same datacenter

Backup Service provides real-time persistent data replication between paired pools

Site Failure

Same support as for pool failure as above for Lync 2013 pools but with pools in geographically distributed data centers

Supported for Lync 2013 pools only

Edge signaling independent of media

Edge signaling independent of media

User homed in EU

Also for meetings created by user

User will always use this pool for AV Edge




Edge federation flows

Edge Federation flows

User homed in EU

Edge Pool used for Federation

Edge Pool used for Federation

User will always use this pool for AV Edge








Legacy and latest remote access.

Legacy and latest federation.

Latest remote access.

  • Install new server or new client first, your choice.

  • Multiple version of Lync server in the same infrastructure.

  • Move users across pool with no users loss of data.

  • Allows seamless migration for users.



Legacy pool

Latest pool

Legacy edge

Latest edge



Legacy director

Latest director


Redeploy survivable branch appliances

Redeploy Survivable Branch Appliances

Move branch users to another pool

Remove Lync Server 2010 SBA from topology

Add Lync Server 2013 SBA to topology and configure FE pool as Backup Registrar

Move users back to the new SBA

Mobility coexistence

Mobility Coexistence

Deployment choices

Deployment Choices

Lync on premise

Lync On-Premise

Lync Server


  • Benefits from all Lync Server functionalities

  • Maximum flexibility

  • Interoperate with other on-premise investments

  • Works with Exchange and SharePoint Online

Lync Online

Hybrid deployment

Hybrid Deployment

Lync Server


  • The cloud on your terms

  • No radical changes

  • Less complexity

  • Leveraging on-premise investments

Lync Online

  • Login