s********e
发帖数: 21 | 1 来自主题: EmergingNetworking版 - IPTV IPTV may be a good way telco companies try to survive. Otherwise, VoIP
companies can eat telco alive with VoIP. For end-users, the value proposition
of IPTV is not very clear. Compared to cable TV, not many extra service
features IPTV can offer. IPTV may be more economical and suitable for internal
broadcasting within small areas like hospitals, hotels, and airport. After
many years, when the fiber infrastruction is built, maybe it is cheaper for
telco to offer integrated VoIP, IPTV, and Interne |
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s********e
发帖数: 21 | 2 来自主题: EmergingNetworking版 - IPTV IPTV may be a good way telco companies try to survive. Otherwise, VoIP
companies can eat telco alive with VoIP. For end-users, the value proposition
of IPTV is not very clear. Compared to cable TV, not many extra service
features IPTV can offer. IPTV may be more economical and suitable for internal
broadcasting within small areas like hospitals, hotels, and airport. After
many years, when the fiber infrastruction is built, maybe it is cheaper for
telco to offer integrated VoIP, IPTV, and Interne |
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z**r
发帖数: 17771 | 3 http://tech.sina.com.cn/t/2006-03-20/0858871404.shtml
俺看这个没有表面上这么简单，上海贝尔的东西都是阿尔卡特的，中兴最近跟思科签署合
作协议，分销思科的设备，但是像dslam肯定还是中兴自己的，还有PON传输。所以这个项
目的赢家估计是4家，中兴+思科，以及上海贝尔+阿尔卡特。
关于IPTV中间件，阿尔卡特后来跟微软签署协议，而思科新近收购了Scientific Atlanta
（世界第二大有线电视设备商），也能提供中间件。
还有就是Set Top Box，不知道上海贝尔有没有自己的，SA反正肯定有。
最大的输家是UT，UT不能提供端到端方案，华为在IPTV上也迟迟不见动作，不知道想什么
呢。 |
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v**n
发帖数: 951 | 4 来自主题: EmergingNetworking版 - IPTV which part of the IPTV you are working on?
There are too many discussions about IPTV online. you can find some at
lightreading and heavy reading. |
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z**r
发帖数: 17771 | 5 来自主题: EmergingNetworking版 - IPTV Broadwing跟qwest是最大的两家有dark fiber的公司？俺倒不知道这个。
telecom一般都有自己的backbone，cable公司一般都很分散，零乱，有自己backbone的据
俺所知只有comcast一家。
iptv虽然没有什么特别新的技术，但是涵盖的面非常广，从运营结构上看，有super head
-end, CO/VSO，super headend主要做传统的headend的活，最重要的就是encoding，同时
进行multicast tv programes，一套iptv网可能只有1个，或者最多2个（座reduntancy）
，vso做的事情比较杂，最重要的可能就是VoD了，都是unicast的traffic
从component方面看，主要分application, service, and network，每个layer都有很多
东西在里面，俺是搞网络的，所以最关心的是network，也略微了解一点service，至于
application就不关俺的事情了。
大致说了这么些，大家可以把每个东西都拿出来讨论
我知
=>niceboy (Thu |
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z**r
发帖数: 17771 | 6 Cisco & Microsoft: IPTV War Ahead?
JANUARY 10, 2007
Cisco Systems Inc. (Nasdaq: CSCO - message board) and Microsoft Corp. (Nasda
q: MSFT - message board) consider each other partners in IPTV now, but Cisco
's ambitions in the space may eventually put the two at odds, industry sourc
es say.
Microsoft and Alcatel (now Alcatel-Lucent (NYSE: ALU - message board)) have
over the past two years won a string of large carrier accounts with their en
d-to-end, and some say rather proprietary, video distrib |
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y*****g
发帖数: 496 | 7 Waltham, Verizon IPTV Junior Scala Developer可内推。
有兴趣者请发简历至 [email protected]
/* */ |
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j******u
发帖数: 316 | 8 最近搬新家，一研究电视，根本没有满意的，我家一直用twc，一个月>$60,根本不看多
长时间，satellite tv安装麻烦，不想动房子。有没有iptv的选择？谢了! |
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s*****y
发帖数: 1974 | 9 快过年了，想看看国内的中文电视
不知道有没有人在用iTalkBB的IPTV
效果清楚吗，还有节目是实时的吗，还是播放昨天的 |
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m******7
发帖数: 316 | 10 打算装个IPTV, 看到文学城上的魅力中国貌私不错, 有50个频道, 买盒子70, 每月7.99
, 但是又在网上找了一下, 看见另外一个ebay上卖的SDGI3000, 79.99,有60多个频道.
没月费, 想知道这两个有区别吗? 盒子价格差不多, 但是一个有月费一个没有, 如果只
是想用来看电视的话, 质量什么的有区别吗? 看电视节目有没有什么隐形的限制什么的
. 新手不懂, 希望有用过的大虾来说说. 先谢过了. |
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z**r
发帖数: 17771 | 12 俺也不是很了解，这个东西还是挺新。不过大致上：
所有的middleware的目的基本上主要就是一个，就是把user interface和真正的
application联系起来，这个在web based service上也是这样，只是大家可能使用的后台
协议，接口，
应用都不一样，一般都是backoffice系统里面的核心。
iptv中，就是把普通电视节目，video on demand, gaming等等等等，通过不同的set top
box，给后台的application server一个标准接口，以及进行协调，比如encoding，
encryption等等，还有provisioning system应该。
至于具体实现，完全是application，不具体做一个项目，估计很难弄特别清楚，不过即
使是具体项目，这个东西customization也很厉害，每个客户都不是完全一样。
谁知道更详细，准确的，请补充。 |
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z**r
发帖数: 17771 | 13 俺也不是很了解，这个东西还是挺新。不过大致上：
所有的middleware的目的基本上主要就是一个，就是把user interface和真正的
application联系起来，这个在web based service上也是这样，只是大家可能使用的后台
协议，接口，
应用都不一样，一般都是backoffice系统里面的核心。
iptv中，就是把普通电视节目，video on demand, gaming等等等等，通过不同的set top
box，给后台的application server一个标准接口，以及进行协调，比如encoding，
encryption等等，还有provisioning system应该。
至于具体实现，完全是application，不具体做一个项目，估计很难弄特别清楚，不过即
使是具体项目，这个东西customization也很厉害，每个客户都不是完全一样。
谁知道更详细，准确的，请补充。 |
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c*a
发帖数: 806 | 14 来自主题: EmergingNetworking版 - IPTV I think there are two groups here
Cable : Comcast, TimeWarner/Adelphia, Cox, and other small ones
Cable TV (traditional, even with digital)
VoIP (packetCable.com?)
Internet (Data) speed surely higher than dsl, but similar to FIOS
Telecom: Verizon/MCI, ATT/SBC/BLS
IPTV (most use Microsoft product?)
Internet (DSL not so good in most places, FIOS is an exception)
PSTN: (shrinking?)
Anyone has access to gartner? they should have nice pie chart of these |
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z**r
发帖数: 17771 | 15 来自主题: EmergingNetworking版 - IPTV I would consider IPTV is an evolution of data network industry |
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c*******o
发帖数: 1722 | 16 来自主题: EmergingNetworking版 - IPTV what are the typical cable companies? Time warnar?
There is business overlap between cable companies and telecom.
they both provide tel. and TV service, however, cable companies
have more of their customers to buy tel. service than telecom
have their customers to buy TV service. In this new IPTV area,
seems cable companies gonna win again. so, i am wondering where
the traditional telecom companies gonna go. maybe this is why
so many telecom merges recently.
. |
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c*******o
发帖数: 1722 | 17 来自主题: EmergingNetworking版 - IPTV what are the typical cable companies? Time warnar?
There is business overlap between cable companies and telecom.
they both provide tel. and TV service, however, cable companies
have more of their customers to buy tel. service than telecom
have their customers to buy TV service. In this new IPTV area,
seems cable companies gonna win again. so, i am wondering where
the traditional telecom companies gonna go. maybe this is why
so many telecom merges recently.
. |
|
c*******o
发帖数: 1722 | 18 来自主题: EmergingNetworking版 - IPTV what are the typical cable companies? Time warnar?
There is business overlap between cable companies and telecom.
they both provide tel. and TV service, however, cable companies
have more of their customers to buy tel. service than telecom
have their customers to buy TV service. In this new IPTV area,
seems cable companies gonna win again. so, i am wondering where
the traditional telecom companies gonna go. maybe this is why
so many telecom merges recently.
. |
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z**r
发帖数: 17771 | 19 来自主题: EmergingNetworking版 - IPTV I would consider IPTV is an evolution of data network industry |
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z**r
发帖数: 17771 | 20 来自主题: EmergingNetworking版 - IPTV I would consider IPTV is an evolution of data network industry |
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L******t
发帖数: 1985 | 21 来自主题: EmergingNetworking版 - IPTV Comcast is the only big one I know.
Currently Telecom can hardly take biz from cable, the reverse is true. Telecom
is desperate finding a way to reach each home with fibre, like cable has been
able to with coaxial cable.
But mass deployment of IPTV service is still a far far call. Cable is yet to
go completely digital by 09? The techs have been there. What's missing is the
capital & the necessity of conversion.
[08/18 03:41:18 21195 1] guest ENTER [email protected] (ALLOC 3009) [www]
[08/18 03:41 |
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L******t
发帖数: 1985 | 22 At least Comcast is doing something interesting with the profit. :D
What I learn from this article is how DOCSIS 3.0 address bandwidth for IPTV |
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z**r
发帖数: 17771 | 23 right, thus way comcast can save huge money by providing the same service as
today, in other words, consumers who will spend the same money as today
will get much better service.
IPTV |
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