Video Interoperability July 8, 2015 Sumitra Sinha (Lead) Dan Druta Sri Narahari

Outline Problem Statement - Current vendor/technology-centric implementations & limitations Objectives – Standard Compliant Interoperable Video Solutions Scope – Interoperability for Network and end point Video Capabilities including WebRTC and RCS/IR.94 Enabler Functions for Signaling, Media, Content Sharing & other feature Interoperability Desired vision for a fully Interoperable Video Solution Use Cases Interoperability between 2 Service Providers’ platforms

Current Multi-technology and Multi-vendor Implementations Page 3

Problem Statement Presently, multi-technology and multi-vendor solutions are available to provide Real-Time/On Demand video capabilities in the market place, serving segmented video endpoints/devices. These isolated implementations of video services increase the infrastructure and operational cost. This lack of “any-to-any” platform/device interoperability imposes some limitations on the end users when choosing services for their devices, hindering the Operators’ current investment and revenue stream. Due to Technology and device centric and silo’d implementations of Video Services, there is a compelling need for Service Providers/Operators to build more collaborated and seamless solutions, serving any video capable end points across any Service Provider's network (e.g. wireless, wireline), in an “any-to-any” environment.

Objectives Conduct a high-level analysis to identify the gaps for interoperable Video Solutions Leverage the existing standards/Interfaces and identify the new Enabler Functions to align the video solutions while protecting the current investment Access & Signaling Level Media and Content Level Other Interoperability Functions (e.g. Centralized Routing Registry) Recommend a set of guidelines/requirements to address the Video Interoperability issues in the following scenarios: Cross Platform Technology/Standards /Implementations Cross Operators/SPs’ Network Implementations

Interoperable Video Capabilities In Scope An Interoperable Video Solution will support the following capabilities : HD Video Conferencing Applications (IMS/Non-IMS Platforms) One to one/Multiparty Video Conferencing between multi-vendor Conferencing Platforms Both advanced or ad-hoc reservation capabilities Dial-out Capability to another Conferencing Bridge or end User using SIP URI/E.164 Recording and retrieving a Video Session content Video Calling (one to one and multi-party) over RCS/ IR.94 Inter-Carrier Video Calling Video Share/Video Chat - Video Share within an IM Chat session Video Streaming Note: This study does not specify any internal design or implementation details of the video platforms or applications addressed here.

Access & Signaling Interoperability

Key Functional Enablers for an Any-To-Any Interoperable Video Solution Need Access & Signaling Level Interoperability SBC/Expanded SBC (Web to SIP Conversion Function) - Support interconnect* and signaling interoperability among IMS SIP, SIP, IR.94, WebRTC browsers and Group System endpoints DBF(Data Border Function) – Support Data/web Protocol related interworking for web end points API Gateway - Support a common set of API access to interwork with the 3rd Party/Service Providers/developers’ capabilities (e.g. Scheduling API) Other Protocols/Standards (e.g. TIP) – Support interoperability with Tele-Presence Video Platforms/Endpoints without using Interworking Gateway Functions (for media negotiations) *JOINT ATIS/SIP FORUM TECHNICAL REPORT – IP NNI PROFILE (ATIS-1000063 – SIP Forum TWG-6)

Media and Content Level Interoperability

Key Functional Enablers for an Any-To-Any Interoperable Video Solution Need Media & Content Level Interoperability SBC/BGF, MRF and Bridging Function (MCU) – Support a common set of compatible bridging and Interoperating capabilities among multi vendor video conference platforms/applications, e.g. Intra-company, Inter-company, Inter-Service Providers, dial-out features Transcoding Pool, SBC/BGF and MRF - Support for a common set of Audio/Video (H.264, H.265, VP8/VP9, RTV/RDP etc.) codecs to provide Media Interoperability for incompatible video end points (AVC, SVC etc.) TIP Support – Support interoperability with Tele-Presence Video Platforms/Endpoints without using Interworking Gateway Functions Data Sharing - Support a set of common Content sharing Protocols. Support interworking/conversion of H.239 content sharing to SIP BFCP/ and vice versa

Other Interoperability Functions

Key Functional Enablers for an Any-To-Any Interoperable Video Solution Need a common set of NNI requirements Support the requirements described in JOINT ATIS/SIP FORUM TECHNICAL REPORT – IP NNI PROFILE (ATIS-1000063 – SIP Forum TWG-6) Need a common set of HD video resolution support Support a minimum set of common video resolution display of 720p at 30fps, up to 1080p for high-end quality display Need Security Interoperability Support a set of common encryption mechanisms Support SRTP, TLS for Media encryption across multi-vendor platforms Need Interoperability for Routing/Addressing Management Support a common centralized Routing Directory Support a common Carrier/Operator/Enterprise/customer-facing directory for all (IMS/Non-IMS) end-points Enable usage of E.164 telephone number dialing in addition to URI and Social Identity etc. Support International dialing when available

Key Functional Enablers for an Any-To-Any Interoperable Video Solution (Con’t) Need Bandwidth Management mechanisms (Compliant with OVCC requirements) thru MCU/MRF Support a common set of network QOE capabilities (e.g. HEVC, SVC) Need Inter-network Billing, Network Management and Operational Interoperability Support Support a common mechanism to generate billing records across the multi-vendor platforms Support common Standards to manage the agreed upon SLAs across the multi- technology platforms

Future Interoperable Video Solutions IMS Platforms Non-IMS Platforms IMS SIP SIP http/Internet/API Interworking Calls Page 14

Key Takeaways Develop fully interoperable Video Platforms/Solutions based on a common set of proposed Standards/guidelines and promote any-to any collaboration in Cloud environment Drive new Capabilities and Standards Address integration of API access, WebRTC and VoLTE RCS/IR.94 end points to be compatible with the emerging standards Create new Video capabilities (e.g. Unified Communication) for Enterprise/ 3rd Party Service Providers/OTT endpoints via API/Interworking functions over LTE/Internet Validate the Architecture functions thru Lab POCs

Use Case

Use Case: Interoperability between two Service Providers’ Video Platforms SVC. Provider A SVC. provider B HD Video Conf. AS (MRB/MRF) Private Dir. 4 Non-IMS SIP Trunk H.264 Video 3 9 Control Server 8 TP Server (MCU) IMS Core 7 I-SBC HD Video Conferencing Platform I-SBC (Non-IMS) TP Platform SBC (w/SIP Interworking for video calls) 6 2 W2S/API Access SBC (w/SIP Interworking for video calls) 5 SBC 1 A-SBC/BGF Signaling Media Content Sharing Video Conf Client Interoperability between HD Conferencing Platform and Tele-Presence (TP) Platform is supported by interworking SBC , MRF/MCU and BFCP/H.239 functions 1)-6) A video Conferencing endpoint dials the Conference Bridge number using SIP URI/ E.164 number thru SBC function. Similarly the TP endpoints call the TP Conferencing server. 7) Both Conferencing platforms support dial out capability to bridge the conferences. In this example, the TP dials out to the HD Conferencing Platform. The call is set up between the two Service Providers’ endpoints Two-way Audio & Video streams are bridged thru the TP MCU over Interworking-SBC. Both SBCs will interwork IMS SIP and SIP. H.239/SIP BFCP is supported by both platforms for Data Sharing one direction at a time. P.S: Detail/specific implementation would be determined by Operator’s Service Design. Page 17

Back-up

Any-to Any Video Capabilities – Fully Integrated and Interoperable Item Num. From Service From End Points To Service To Interop Enabler Functions User Experience /Comments   IR.94 Video Calling IR.94 (LTE Carrier s w/IR.94) LTE Carriers with RCS IR.94 Interconnect SBC Interworking SBC RCS/IR.94 Video Clients -to-Any Endpoints Tele-Conferencing Service/Tele Presence Service/UC Voice/SIP Based Video Services WebRTC TP end points (TP room, IR.94, Cisco Jabber) UC Clients/SIP end points WebRTC Platform Web End points for Web Streaming API GW Web2SIP 3rd Party Video/Web Streaming Services (Web Based Content) WebRTC Browser Endpoints Web Streaming End points W2S Enterprise UC/OTT Enterprise UC/OTT with Proprietary clients Web end points (UGC) DBF Adapters Protocol Conversion MCU/MRF Data Support Protocols