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cc.GIF (6428 bytes)
July 1999


Tom Keating

To: CTI Readers
Cc: AT&T, Flexion, MediaOne, Microsoft, TCI,
TollBridge Technologies, VINA Technologies
Subject: The Future of Cable Telephony (CT)…

BY Tom Keating


AT&T's depredations in the cable space — should they be regarded with alarm, celebration, or cool detachment, of the sort appropriate for appraising the potential of what promises to be a long campaign? To answer that question, we’ll have to speculate as to AT&T’s motives. One thing is for sure: AT&T isn’t amassing its resources and staging its mergers so it can provide cable TV programming. So just what is AT&T up to?

Let’s consider a couple of AT&T’s recent moves. About a year ago, AT&T acquired TCI for $48 billion. And now, AT&T proposes to buy MediaOne for $58 billion. No doubt AT&T will propose additional acquisitions of cable companies.

If and when the latest merger is achieved, AT&T will have access to 16 million subscribers. It will, moreover, become the largest cable operator in the nation. But, perhaps more important, AT&T will be able to provide local phone services, something AT&T has been interested in doing for years.

AT&T will actually realize some of the potential of the Telecom Deregulation Act. Of course, AT&T may provoke competition for itself in another arena. That is, the Baby Bells and RBOCs will no doubt complain to the FCC, insisting that they be allowed reciprocal access to AT&T’s bailiwick — the long-distance market. All this could mean more competition all around, which could result in lower costs for consumers. (We’ll see.)

AT&T’s ultimate aim is to get into your home, and cable will be the means to this end. Just think: If you take the average monthly fee for cable access to the Internet — $45 —and multiply it by the 16 million subscribers AT&T will have with this merger, you come up with a gross figure of $720 million per month! Of course, this assumes that all 16 million customers will sign up for Internet access. (I should point out that only about 29,000 of AT&T’s current 10 million cable customers are using broadband services.)

In any case, AT&T’s interests aren’t limited to becoming your ISP, providing Internet services to your home. Sure, a hypothetical $720 million per month is nothing to cough at. Ahem! But AT&T is well aware that providing high-speed data access to the home will enable AT&T to provide enhanced services such as cable telephony, unified messaging, interactive TV, and multi-media content.

THE THIN END OF THE WEDGE:  THE SET-TOP BOX
In addition to the MediaOne merger, AT&T recently announced an agreement with Microsoft whereby Microsoft would provide the digital set-top boxes for AT&T’s cable customers. As part of this deal, Microsoft invested $5 billion in AT&T stock.

AT&T’s plan to utilize “cable telephony” (CT) technology is one of the more interesting aspects of this merger, since this will directly affect both the CTI and Internet telephony industries. CT will enable home consumers to receive and make telephone calls from their set-top boxes running Windows CE. Thus, several interesting applications using cable telephony in the near future are plausible.

For example, I can foresee being able to shop online over my TV set-top. And, if I were to have a question about any of my orders, I imagine I could click a button to initiate a call to a call center agent. This call would utilize voice over IP (VoIP) running over cable or “direct” voice over cable telephony technology, all from the comfort of my living room couch. E-commerce at its best!

ADVANTAGES AND DISADVANTAGES OF THE SET-TOP BOX
I should point out that there is a fundamental problem with using set-top boxes, such as WebTV, to access the Internet. The television set is a “shared resource” among family members. Even though the latest surveys show that the average home has two television sets, it’s all too common for family members to argue over the remote control and which program should be selected. If you add Internet capabilities to television, that will only increase contention over what is being viewed on the television screen. If we use Windows-CE embedded into these set-tops, do we really want a BSOD (Blue Screen of Death) in the middle of watching The English Patient? OK, maybe we won’t mind that. But still…

On the other hand, AT&T and Microsoft are not known for making many blunders, especially when it involves billion-dollar investments! The key here is that the television is still the “king” when it comes to capturing the attention of most Americans. Sure, there will be some contention over TV utilization, but let’s keep things in perspective. Look back 25 years ago. Back then, who ever heard of a family with more than one television? If demand requires it, and if the applications are worth it, then consumers will purchase a second, third, or even fourth television for their home.

One of the benefits of set-top boxes for accessing the Web is that a computer is not required, and non-computer-literate people can connect themselves to the Web in a matter of minutes. Not to mention a decent TV is less expensive than a computer.

I should point out one other advantage of set-top boxes. This one concerns surfing the Web. The advantage is that with set-top boxes, I can start surfing right away. With a computer, I have to wait at least two minutes for my computer to boot-up, followed by about 30 seconds to establish my dial-up connection. Many times I need to look up just one small piece of information on the Web. Still, I am forced to turn on my computer, endure the wait, and then (tidbit secured) turn off the computer. How much easier such a search would be with a set-top box. This difference alone would be enough to make me want to go out and buy a set-top box!

WHAT WILL DRIVE THE ACCEPTANCE OF SET-TOPS? APPLICATIONS!
So there is certainly a market for these devices, particularly for the more mature consumers, as well as the “gadget” collectors and early market adopters. But what about the bulk of the younger audience? What will convince them that set-top boxes are useful? Compelling applications that run on the device.

If the set-top box is just about being able to “surf the Web,” the technology won’t impress younger consumers. They can surf the Web from the computers that have already absorbed hundreds, if not thousands, of their investment dollars. The applications that will attract and drive mass-market usage of set-tops will include GUI-based telephony applications, standards-based video conferencing, fast Internet access, e-commerce, Internet telephony, centralized billing, and more. Just to give an idea of how the aforementioned technologies might work in the future, take these hypothetical situations:

GUI-Based Telephony Applications: PC-as-phone dialing from the TV, speed dialing, unified messaging, voice mail, one number follow-me, and more — all from a set-top-enabled TV.

Video Conferencing: Now from the living room (or wherever a set-top-enabled TV is placed), consumers can initiate a video phone call to their mom, dad, grandma, wife, etc. Embedded into the set-tops would be standards-based video cameras that would utilize the H.323 standard. Take this a step further, and you can foresee this technology being used by teachers to educate students (distance learning) utilizing T.120 for the collaborative computing process and multi-casting to transmit video to all the students. Sorry kids, no more snow days off!

Fast Internet Access: For videoconferencing, Internet telephony, and other bandwidth-intensive applications to work, adequate bandwidth is crucial. Cable and most likely DSL in the future will provide that bandwidth to these set-tops.

E-Commerce: As I stated previously in my column, e-commerce will flourish once set-tops are adopted in the market. Another future theoretical situation: I’m watching TV, and a commercial comes on, say, a Sports Illustrated subscription offer. I can either run for a pen to write down the 800 number, or (more interestingly) simply press “Buy” on the remote control. With the “Buy” option, the product would be automatically charged to my account with AT&T’s cable Internet access bill. Not only that, but the product would be delivered to my address without my having to fill out my name, address, or any other information, since the set-top will already have that information stored in a “cookie” or other means. The possibilities are endless.

Internet Telephony: Besides video conferencing, users may just want to make a normal phone call using VoIP. Imagine being able to take an incoming phone call from your television set. The television can display the caller-ID information, and you might even be able to set call rules that would let you handle callers based on their identity.

Centrex-Like Services: Even more impressive is that now cable providers can provide local and long-distance service via cable, completely bypassing the local phone company. Essentially, in the near future, the small office/home office (SOHO) will be able to use its cable connection along with multiplexing technology to acquire multiple phone lines that would transmit voice over cable.

A demuxing device on the customer premises will demux the data signals traversing over the copper back into two, four, eight, or more voice channels. Thus, AT&T and other cable providers will be able to provide Centrex-like voice services utilizing cable telephony technology.

Currently there are several products which enable Centrex-like services over “copper” phone lines utilizing DSL. Companies such as Vina Technologies, Flexion, and TollBridge Technologies are a few examples. They utilize broadband, whether it’s DSL, cable, or both to bring voice lines to the customer premise. One drawback of multiplexing voice channels over cable is that unlike DSL, it’s not a dedicated bandwidth line. It’s shared with your neighbors, so this technology may be limited in the near term until guaranteed bandwidth issues are resolved.

Centralized Billing: Being able to view your phone bill, cable bill, and any items you purchased on the Web all on one centralized bill displayed on your set-top TV is an intriguing option, an application that may help drive set-tops in the future. If you have a query on one of the billing items, you can initiate a VoIP call to the appropriate call center. Also, you have a centralized place for managing your account, allowing you to enable or disable various enhanced services, such as caller-ID, voice mail, and three-way calling.

BACK TO AT&T’S WHEELING AND DEALING
Much of what I have stated in this column is purely speculative. So, to get more grounded in reality, I’m eager to know exactly what AT&T’s near-term plans were for cable telephony technology. As part of my effort to inform myself about AT&T’s plans, I participated in an interview with Michael Armstrong, chairman and CEO of AT&T.

One thing Armstrong confirmed is that the recent acquisitions were inspired by AT&T’s telephony-oriented ambitions. He also confirmed AT&T’s commitment to set-top technology, stating “We’re announcing a model cities program (starting in 2000). One is a large city, one is a small city around 50,000, and one city is a multi-vendor environment, to drive the interactive TV environment.”

In response to a question about the FCC looking into the recent AT&T deals, Armstrong stated, “In terms of regulatory review, I think there’s been a lot of focus on the fact that AT&T now has with MediaOne and TCI on the old attribution rules between 25 and 35 percent of consumers that we can now reach. There’s not been much focus on another issue: that we’ve got a big job ahead of us on the other two-thirds of the country.”

“And I think most of the analysts and some of the reporters understand that the purpose of this huge investment on our part is to compete, to be able to offer a suite of services to consumers that’ll permit us to come up against the local exchange carriers. We’re in all states. We have 61 million consumer customers. It’s a $21 billion stream. It’s got very fine margins. So our long-distance business is something that we want to convert to ‘any distance’ across the land. And to do that we’ve chosen broadband at the heart of our strategy.”

CTI’S PLACE IN ALL OF THIS…
With all this hysteria over broadband and the recent mega-mergers in the telcom world, I’m excited to be a part of the telecom industry. While the CTI industry itself is only one part of the whole telecom spectrum, CTI’s importance in driving the latest telecom innovations cannot be understated. CTI is, after all, about providing intelligence and enhancements to any telecommunications device, whether it’s a traditional phone, an IP phone, or a Windows-CE based set-top box.

It will be interesting to see whether these set-top boxes will be limited to being just another method for home consumers to surf the Web, or whether they will evolve, acquiring advanced CTI functionality, such as cable telephony, enhanced services, Centrex-like phone services, e-commerce, and the other types of functionality I mentioned earlier. While I don’t profess that CTI will be the main motivation behind consumers buying these set-top boxes (surely, high-speed Internet access and convenience is the primary reason), CTI will certainly have its place.

Tom Keating is chief technical officer and executive technology editor for TMC. He welcomes your feedback. To contact him, send your e-mail to Tom Keating .


What's HOT!

In keeping with the theme of this column, I'd like to discuss a recent visit I had with a vendor who happens to have a product that performs voice over broadband (DSL, cable) utilizing IP. The company, TollBridge Technologies , offers TollVoice, a product that works with any Class 5 switch and acts as a simple end-to-end overlay to broadband access networks. Designed for LEC bypass, the TollBridge product consists of three elements:

  1. TB50 — Customer premise equipment (CPE) that converts voice samples from multiple calls into a single IP packet and prioritizes voice and data traffic for transmission over any broadband network.
  2. TB200 — A carrier-grade voice gateway that translates packets back into voice and connects to Class 5 switches using the Bellcore GR-303 protocol.
  3. TB-EMS — A graphical Element Management System (EMS) for end-to-end configuration, troubleshooting, and performance management of up to 100 TB200 systems from HP OpenView or Solaris platforms.

TollVoice works with standard analog phones, fax machines, modems, etc. and provides support for all current voice services from the Class 5 switch. Essentially, this product will change the economics for delivering voice services to small business customers by allowing CLECs who own Class 5 switches to use emerging broadband access technologies to deliver toll-quality voice and integrated data services.


DSL Versus Cable

One of the problems with cable is that the bandwidth is shared across 500 homes or more. Its’ also possible to listen in on network traffic from your neighbors (due to the “shared” connection), presenting a security concern. DSL, on the other hand, has on each connection a direct circuit back to the central office, thus providing guaranteed bandwidth and better security. Cable currently has a much larger installed base than DSL installations, but expect DSL to catch up in the next two or three years.

One of the disadvantages of DSL versus cable is that DSL requires equipment co-located at the central office. Not only is space a commodity at the central office, but you have to pay a premium to lease the space. With cable, you own the network, so you needn’t worry over such co-location issues.


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