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Scenarios Lync-Skype Audio (v1) Add to contact list/Block users [Lync to MSA] Block Skype Connectivity Instant Messages and Presence Updates P2P Audio.

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Presentation on theme: "Scenarios Lync-Skype Audio (v1) Add to contact list/Block users [Lync to MSA] Block Skype Connectivity Instant Messages and Presence Updates P2P Audio."— Presentation transcript:

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4 Scenarios Lync-Skype Audio (v1) Add to contact list/Block users [Lync to MSA] Block Skype Connectivity Instant Messages and Presence Updates P2P Audio Call Escalate IM session to Audio Call Hold/Resume, Mute/UnMute, Transfer Lync-Skype Video (v2) Everything in v1 Make Audio + Video Calls Reject Video for inbound calls Escalate Audio only calls by adding video Pause/Resume Video

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7 Architecture improvements New Skype cloud for improved call set up and control. New gateway connects Skype cloud to Lync Online for signalling and call control. Uses Lync’s federation access architecture that routes to both v1 and v2 clouds. V1 connectivity will continue to exist as traffic gradually increases on V2 connectivity.

8 Connectivity v1 architecture

9 Connectivity v2 architecture

10 Call connectivity All AV calls flow through the same federation environment set up in v1 Lync SIP/SDP signalling is terminated at the Skype Cloud edge and translated into Skype proprietary protocols and vice versa Lync to Skype Calls AV calls are forked internally to both v1 and v2 clients Mediation server supports only Audio New Lync Gateway services all v2 calls. Skype to Lync Calls v2 clients will route calls through v2 Skype Cloud > Lync federation environment > Lync client v1 clients will route calls through v1 Skype Cloud > Lync federation environment > Lync client

11 Connectivity v1 call flow Call initiated with connection details Call accepted and returns connection details Media connection is established

12 Connectivity v2 call flow Call initiated with connection details Call accepted and returns connection details Media connection is established

13 PlatformLyncSkype Windows Desktop Lync 2013 (upcoming CU)Internal trial version Windows Modern Lync Modern (upcoming release)Coming Soon Mobile (Windows Phone, iOS, Android) Coming soonComing Soon Web AppNot supportedNA MACPotential future supportComing Soon

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15 Technology improvements Direct media connectivity between Lync and Skype clients SILK has been ported over to Lync desktop client. Coming to other Lync clients soon. SILK will currently only used in Lync-Skype Interop Calls G.722 and G.711 remain on the list of common codecs Video using H.264 SVC Media connectivity using ICE - ICE v19 support added to Skype client Along with STUN\TURN for NAT traversal

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17 Network conditionsSILK 36 kbpsG.722 64 kbps Ideal 4.424.31 5% random loss 4.354.12 5% burst loss 4.03.68 MOS calculated using ITU-T P.863 POLQA CodecScenarioAudio payload (kbps) Audio payload + IP header (kbps) Audio payload + IP, UDP, RTP (kbps) Audio payload + IP, UDP, RTP + FEC (kbps) G.722p2p648092156 SILKp2p365264100

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19 Payload TypeCodecSampling RateTarget Bitrate 104SILK Wideband16k36kbps 103SILK Narrowband8k13kbps

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23 Enterprise NAT Traversal Mechanism Stun/Turn/ICE DMZ Router Edge ICE Client ICE Server ❶ Host Candidate – Likely to fail ❷ STUN Candidate ❸ TURN Candidate – Edge Relay ❶ ❷ ❸ SIP uses the source and target IP addresses to establish a session. Network Address Translation (NAT) modifies IP addresses as packets transit onto the public internet and thereby renders the INVITE invalid. STUN, TURN and ICE resolve such session/NAT issues.

24 Snooper Trace – Lync SIP Invite to Skype

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26 Enabling Lync Skype Federation If your enterprise is already configured to connect with Windows Messenger via PIC, you are already set up to federate with Skype! Achieved by provisioning via the PIC (Public Instant Messaging Connectivity) system Valid for both Lync Online and On-prem. Full details at: http://technet.microsoft.com/en-us/library/dn440173.aspxhttp://technet.microsoft.com/en-us/library/dn440173.aspx Same steps for both audio only federation (current GA) and future video enabled calls

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29 Website Button Call Lync-Skype Connectivity V1 DMZ Router T1, PRI, Analog Hybrid MS SBC/VoIP GW Lync-Skype Connectivity opens a new communications door for enterprises searching for inventive and differentiated opportunities for new customer acquisition, customer retention, and business-to- consumer communications. Edge Socks5 Proxy chat & audio Chat & Audio Queues/IVR Skills Groups Routing Rules Recording Dashboard Reporting 3 rd Party Contact Center

30 Website Button Call Lync-Skype Connectivity V2 DMZ Router T1, PRI, Analog Hybrid MS SBC/VoIP GW With version 2, we now use standard NAT traversal protocols, Signalling is encrypted with TLS and media uses sRTP directly between callers. We’ve standardized Codecs between the clients and have added Video !! Edge Chat, audio, Video Chat, Audio, Video  Declare domain  Configure PKI  Set policies Queues/IVR Skills Groups Routing Rules Recording Dashboard Reporting 3 rd Party Contact Center

31 Lync Online – Lync Skype Connectivity V2 DMZ Router With version 2, we now use standard NAT traversal protocols, Signalling is encrypted with TLS and media uses sRTP directly between callers. We’ve standardized Codecs between the clients and have added Video !! Chat, audio, Video Chat, Audio, Video Queues/IVR Skills Groups Routing Rules Recording Dashboard Reporting 3 rd Party Contact Center

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