可互操作的视频会议

虽然有很多有趣的公告在上周的VoiceCon事件,我发现了一个很大的与会者和供应商关注的互操作性,特别是在视频会议。供应商包括思科,宝利通Tandberg和Vidtel发表声明他们与竞争或合作伙伴系统互操作的能力,和/或新的跨公司视频选项包括泰德和Vidtel承载桥接服务的互操作性。我们继续看到这些部署UC互操作性的一个主要障碍,58%的公司告诉我们这是他们面临的最大挑战。从众多的讨论会议,和一系列公告,供应商得到消息并正在推进杀死野兽的互操作性。然而,挑战仍然存在,包括:互操作性与进步:在周二上午h . SVC Tandberg以及在启动Vidyo ploycom殴打缺乏Vidyo的低成本高清系统之间的互操作性和自己的产品。Vidyo的先锋h . SVC的支持,使其能够支持更高的帧速率以更低的成本和更少需要严格的网络QoS。但SVC仍是一个新标准只是部分由国际电信联盟定义的,这意味着任何供应商谁实现SVC (Radvision还有另一个实现)将面临挑战的互操作性。同时,该公司“高调”替代SVC声称减少一半的带宽消耗,但现在是一个Polycom-only解决方案。H.265周围泰德公司表示其计划中心,一个新兴的协议,可能一年或更多。我们将继续看到前进之间势均力敌,保持向后兼容性,我们总是看到。 Standards That Aren’t Really Standards: SIP is a wonderful protocol enabling a extensible framework to support a variety of rich-media services in an IP friendly way. But SIP’s extensibility is also its downfall in that developers are free to add their own capabilities to their implementations. We continue to hear concerns, both in voice and video implementations, around SIP incompatibilities. While the SIP Forum promotes its SIPit interoperability events, the results aren’t publicly disclosed. We still lack a “SIP Certified” sticker that will help customers ensure that solutions from different vendors work together. Emerging Standards: Cisco made a splash with its Intercompany Media Engine, an appliance that mediates connections between different companies and features the ability to self-learn as calls are initiated. But while Cisco has submitted IME-related standard proposals to the IETF for consideration, IME remains a Cisco-only solution for now. Bottom line: Interoperability remains a challenge, and there will always be tradeoffs between interoperability and innovation. Ultimately its up to customers to press their vendors to work together, while they also understand interoperability’s limitations.