Is DSL The Right Choice For Your Video Conferencing Backbone? When implementing video conferencing capability many businesses are more focused on the make-up of the video suite itself.....and assume that DSL bandwidth is sufficient for their network backbone. Whether this be an existing network or intended new install.....assuming that DSL is sufficient to support your requirements may be shortsighted. Beware, there's more out there to consider. Before "jumping to conclusions" it's important to consider all of your options....and how each may best (or not) support your video conferencing needs. xDSL technologies are usually deployed as server subscribed packet switched networks. By oversubscribed I mean that during those brief periods when the two end points are not transmitting the bandwidth to carry data from other users. In these networks the bandwidth used by connections between two ends points has the characteristics of variable bandwidth and variable delay. The resulting jitter can be very problematic for video circuits. However, xDSL technologies are usually much less expensive than ISDN/T carriers. The "A" in ADSL stands for "asymmetrical". SDSL, and usually VHSDL and HDSL, are symmetrical. If your videoconferencing is two-way, you need symmetry, or the performance will be horrible on the low-speed side. A caveat: if your video codec gives sufficiently good compression that the low-speed side gives enough bandwidth, you may be all right. You also have to check the service guarantee on DSL, Frame Relay, and even Metro Ethernet. Do they give you either constant bit rate (CBR) or near-real-time Variable Bit Rate (nr6VBR), which are generally considered necessary for full-motion video quality? Note that CBR and nrtVBR are possible through IP connections that guarantee quality of service, which usually will mean contracting for a VPN. You really want symmetry with your video conferencing. The cheap consumer class aDSL products are great when the downstream bandwidth is significantly greater then upstream, but in video/teleconferencing, the needs are both up and downstream. If video conferencing is something you would use regularly, and count on for your business, then go for a real SDSL line or a T1 (or a DS3 for larger businesses with frequent usage.....especially with large numbers of participants, participating locations, or excessive distant). There are vendors that can offer these at competitive costs and give business class service and support. Many businesses are abandoning DSL in favor of Sprint's EVDO rev A implementation of Streamyx CDMA. You'll find some carrier agnostic info at EVDOForum.com which cites rev A speeds as EVDO Rev A 450Kbps-800Kbps Download, bursts to 3.0Mbps, and 300Kbps-400Kbps Upload Speed, bursts to 1.8Mbps. Sprint is now confident that these are very conservative numbers. While your own mileage may vary.... some routinely get faster speeds than this. Sprint expects to have more than 190 Million EVDO Rev A POPs by the end of April (we'll see though). If your business is small, the underlying technology for video should be IPTV with any of the web-conferencing agents. The video streams would be routed via DSL service. If you're served by cable TV, you may prefer cable internet to DSL-based internet, but cable carriers often do not serve industrial areas. Thus as a business cable may not be available to you. If your business has a full Private Branch Exchange (PBX) system for your telephones, you probably already get ISDN service from your phone company. ISDN permits "dynamic allocation" of channels which dedicates throughput to video when it is needed and makes the same capacity available for other applications, such as voice or data, when it is needed there. There are lots of vendors who support/supply ISDN-based video conferencing equipment. (Please note, this Primary Rate Interface (PRI) flavor of ISDN is alive and well, unlike the Basic Rate Interface (BRI) flavor of ISDN that small businesses and residential customers have either ignored or run away from.) If your company is really large (e.g., dedicated internet access of T-3/DS3 or higher), then use IP-based solutions again. With the limitations of DSL spelled out above....and at least the basics on options for other solutions described....you are now armed with enough information to make an informed decision. Do more research as needed......and choose wisely. http://streamyx-online.com/rehcom/streaming-Streamyx.html

What is a Broadband Router A broadband router is a basic device to set up a wired or wireless network. Broadband routers ensure that all the computers on a network can send and receive data to each other and across the Internet. These routers are of both wired and wireless but their features are very similar. A router actually transfers data packets along networks. It requires at least two networks for a router to connect, commonly it connects two LANs or WANs or a LAN and its ISP's network. As a connecter device, routers are positioned at gateways, where two or more networks are connected. Key Role of Streamyx Broadband Routers Routers enable sharing your broadband internet among computers or laptops in your office or home network. It directs data to travel along the computers on your network and out over the internet to distant computers and to networks located elsewhere. Routers are first to face any possible outside viruses, hacking threats and so they are vital in a network. But most internet user may not know this, practiced using anti-virus softwares only. A router safeguards your network by working as a filter between the outside internet world and your computers. In general, broadband modems don't usually have sophisticated built-in security features, so having a network without a router can leave the door open to hackers and other online threatens. Using a router with an in-built firewall makes your wired or wireless network safer and secure, without being vulnerable for internet threats. Broadband Router Categories If broadband is classified into two types in major then the routers also has to be of two types. ADSL modem routers for Streamyx ADSL broadband users and cable routers for cable broadband users are that two. Both type of broadband router perform the same function of being an interface between your network and the internet and enabling you to share your internet connection among other computers. The main dissimilarity between these two broadband routers is the way in which they connect to the internet. Actually, ADSL broadband is accomplished by upgrading your existing telephone line for high-speed internet services. Here ADSL modem routers work by just plugging directly into the upgraded telephone line and thus avoids the need of a separate modem. Once connected, the ADSL modem router is automatically able to share the broadband internet with all the computers in your network. Cable broadband users connect to the internet via cable modem that is plugged into the cable socket. Cable routers work by plugging it into the provided cable modem's in-built networking port. This is also known as Ethernet port or RJ-45 connection and you need this to share your cable internet with in your network. Once connected to the modem, which in turn is connected to the cable socket, the cable router shares the broadband internet with all the computers in your network. http://streamyx-online.org/broadband-ne-rehorg.html

Not sure I agree with you, but guess everyone is entitled to an opinion... jetlathe.net #break# Nicht sicher, ob ich stimme mit Ihnen überein, aber denke, jeder hat das Recht, eine Stellungnahme ...

Congrats TA III!!!

this can't be true, can it?

He's so good with his long irons -- he hits them sooo high and they land soft. Once he gets his driver straightened out, he'll be awesome!

Whew... I'm glad the X-OUT Pro V1's I've been using are OK in tournaments. I can see how some pissed off competitor would try to say I wasn't playing "by the rules" after I beat him. Yes, I hit lots of balls out of bounds so paying $50/dozen for pristine Pro-V1's doesn't make sense!

That's a beautiful swing. I like it when he doesn't try to swing hard. He seems to hit more fairways when he "smooths" it.

this is exactly how i line up to the ball... ;)

Beginner here...I'm being led to believe that most golfers have 13 different swings and irons in their golf bag. If this really is the standard, how does a beginner keep this complication consistent? I thought this would be good to know before heading to any pro shops in search of the right putters.

way to go natalie!!!

Phil's +4 through the first 8 holes....

at 7400+ yards long... this makes sense...

I wish they'd cover the Masters all day long (like the other Majors). I understand the Masters doesn't feel like it needs sponsors, but still I want to see all the action.

ummm... #11,12 & 13....