Lync Online vs Lync on premise

When to Use Lync Online

Lync Online includes the features needed for IM, presence & IP audio conferencing: The Attendee client, the Web app, interoperation with certified partners, conference scheduling and more. It does not include Group Chat, PSTN calling or IP phone support.

The online package appeals to an office where third-party connectivity isn’t necessary. Maybe the whole office already has smartphones, but they’re spending lots of money on conferencing systems and IP calling is fine.  Lync Online makes sense as a cheaper alternative (per user), that also integrates into Outlook.  If you use the higher end Office 365 SKU’s you can in fact deploy Lync on Premise and pay by the month while getting the full feature set.

So when should you use Lync Online? When the focus is on conducting meetings and inter-office communication.

When to Use Lync Server

Lync Server is a full-service solution with IM, presence, conferencing, PSTN calling, handset support, Call Admissions Control (CAC), interoperability with legacy PBXs.  Lync on premise is a full PBX replacement plus more.  Of course this means you need a full server installation too. It’s a larger investment but you get a much larger benefit.

Lync Server is the better option if you need full communication options. Desk phones, calling (and receiving calls from) customers, and so on.

When should you opt for Lync Server? When the focus is on VoIP communication, especially calling out.

Feature

Lync Server 2010

Lync Online

IM and Presence

1-to-1 and multiparty IM/presence

Yes

Yes

Address book search

Yes

Yes

Distribution list (DL) expansion (DLX)

Yes

Yes

File transfers

Yes

Yes

PC-to-PC audio/video (A/V) dial-out calling

Yes

Yes

Click-to-communicate from Office applications

Yes

Yes

Interactive contact card in Office 2010

Yes

Yes

Lync skill search in on-premises SharePoint Server

Yes

No

Lync skill search in SharePoint Online

No

No

Persistent Group Chat

Yes

No

Privacy mode

Yes

No

Lync External Connectivity (Federation and Public IM Connectivity)

IM/Presence and A/V Federation with other organizations running Lync Server, Lync Online, or Office Communications Server

Yes

Yes

IM/presence and A/V federation with Windows Live Messenger

Yes

Yes

IBM Sametime federation

Yes

No

IM/presence federation with Extensible Messaging and Presence Protocol (XMPP) networks (including Jabber and Google Talk)

Yes

No

IM/presence with AOL and Yahoo

Yes

No

Meetings (A/V and Web Conferencing)

Meeting attendee capacity

250

250

Desktop sharing

Yes

Yes

Application sharing

Yes

Yes

White boarding and annotations

Yes

Yes

PowerPoint upload for online presentations

Yes

Yes

Upload for other Office file types

No

No

Polling

Yes

Yes

Multiparty PC-based A/V

Yes

Yes

Unauthenticated experience in Lync Web App

Yes

Yes

Unauthenticated attendee (rich client)

Yes

Yes

Authenticated experience in Lync Web App

Yes

No

Scheduled conferences (using the Online Meeting Add-in for Lync 2010 in Outlook)

Yes

Yes

Outlook delegation for scheduling meetings

Yes

Yes

Support for RoundTable conferencing device

Yes

Yes

Lobby

Yes

Yes

Interoperation with certified partners for dial-in audio conferencing

No

Yes

Provisioning for dial-in audio conferencing service for Office 365 direct customers

No

Yes

Phone dial-out from scheduled meetings via third-party dial-in conferencing service

No

Yes

Client-side recording and playback

Yes

No

Server-side recording and playback

No

No

Generate a link to a scheduled meeting via web page

No

No

Scheduling an online meeting in Outlook Web App

No

No

Dial-in audio conferencing on Lync Server

Yes

No

Multimedia content upload

No

No

Screen shot capture (including annotation)

No

No

Backstage/content preview for presenters

Yes

Yes

Mute all attendees

Yes

Yes

Mute individual attendees

Yes

Yes

Unmute all attendees

Yes

Yes

Unmute individual attendees

Yes

Yes

In-meeting attendee permission controls

Yes

Yes

Interoperability with on-premises video conferencing systems

Yes

No

Voice and Telephony

PSTN calling (incoming/outgoing calls)

Yes

No

Call hold/retrieve

Yes

No

PSTN dial-out for meetings

Yes

No

Advanced call controls (including transfer, forward, and simultaneous ring)

Yes

No

Access to Exchange Online voice mail

Yes

No

Team call

Yes

No

Delegation for voice (for example, boss delegates to admin)

Yes

No

Call park

Yes

No

Outgoing Direct Inward Dialling (DID) manipulation

Yes

No

Enhanced 9-1-1 (E9-1-1)

Yes

No

Dial plans and policies

Yes

No

IP desk phone support

Yes

No

Survivable Branch Appliances for branch office resiliency

Yes

No

Call admissions control (CAC)

Yes

No

Support for analogue devices (for example, fax)

Yes

No

Response groups

Yes

No

Private line (secondary DID for executives)

Yes

No

Interoperation with third-party private branch exchange (PBX)

Yes

No

Presence interoperation with third-party PBX

No

No

Remote call control (RCC) (also known as “click-to-call”) with on-premises PBX

Yes

No

Malicious call trace

Yes

No

Unassigned number

Yes

No

Network Quality of Service (QoS) – Differentiated Services Code Point (DSCP)

Yes

No

Media path optimization

Yes

No

Phone number management

Yes

No

Call detail recording (CDR) and billing reporting

Yes

No

Integration with call centre solutions (Aspect)

Yes

No

Client Support

Lync 2010

Yes

Yes

Lync Web App (for participating in scheduled meetings)

Yes

Yes

Lync 2010 Phone Edition (IP phones for Lync)

Yes

No

Lync 2010 Attendee client (for joining meetings)

Yes

Yes

Lync 2010 Attendant client (receptionist rich client)

Yes

No

Lync 2010 Mobile

No

No

Office Communicator for Mac

Yes

No

Office Communicator Web Access (2007 R2)

Yes

No

Office Communicator 2007 R2

Yes

No

Office Communicator Mobile (for Windows Mobile 6.x phones)

Yes

No

IM and media encryption

Yes

Yes

IM filtering

Yes

Yes

Anti-malware scanning for meeting content and file transfers

Yes (partner solutions)

No

IM archiving (server-side only)

Yes

No

Exchange and SharePoint interoperability

Presence interoperation with Exchange and SharePoint on-premises

Yes

Yes

Presence interoperation with Exchange and SharePoint Online

Yes

Yes

Exchange Unified Messaging (UM) interoperation with Exchange Online

Yes

No

Exchange UM interoperation with Exchange on-premises

Yes

No

Hybrid Lync Online and On-premises Administration

Server and cloud coexistence (split domain) on user basis (some users on-premises, some users online)

No

No

Splitting workloads (for example, running IM/presence/voice on-premises, and conferencing in the cloud)

No

No

Windows PowerShell support

Yes

No

Web-based user interface (Lync Server Control Panel)

Yes

No

Attendee/user reporting

No

No

Reporting (using CDR and Quality of Experience (QoE))

Yes

No

Third-party API Support

Client automation APIs (client-side only)

Yes

Yes

Server side APIs

Yes

No