The P2P technology enables Skype to provide service without making huge investment, since the bandwidth cost has been handed down to users.
[+] The operational cost of email service
The lowering of communication cost is the best gift brought by the commercialization of the Internet. Most people can't even remember when is the last time they wrote a letter with a pen on paper to friends afar, but they write emails to colleagues next desk in the office everyday.
Emails are sent through a central mail server from a sender's PC and forwarded through another mail server that link to the receiver's PC. This method has completely replaced paper letters that are more costly and slowly.
Emails may have eliminated traditional paper letters, but it is also facing the challenge from yet another communication tool. In fact, since there must be a mail server in between to deliver emails, an email service provider has to afford a significant amount of storage and bandwidth cost.
If the delivery of electronic messages can be completed by connecting two PCs directly without servers involved in between, and thus shifting the storage and bandwidth cost to the sender and receiver, then the financial burden of communication service providers may become lower.
Instant messaging (IM) software like QQ, MSN Messenger is such kind of service, the provider of which is only responsible for connecting the communicating parties. After the connection is established, all messages are transmitted from one individual user to another, with no server involved.
[+] The low operational cost of P2P model
In fact, IM software has partly replaced email tools. As those we contact frequently are mostly acquaintances or partners at work, IM is more convenient and responsive. Many times we choose IM, instead of emails, to communicate with others.
Users of these communication tools users may not be aware of the technology involved, but for communication service providers, P2P is more cost efficient than Client-Server architecture.
Though the use of these tools has nothing to do with Web, but the emphasis on peer-to-peer (C2C) rather than client-server (B2C) communication is in accord with Web 2.0. In fact, let's keep in mind the true meaning of Web 2.0:
The root of the Internet revolution is but one thing - the ever declining cost of digital storage and transmission bandwidth. Socially, it is reflected on "the continuously falling cost of interpersonal communication; on the business side", it is "the gradual disintegration of enterprises which used to thrive on their monopoly of capital and information".
Finally, the new generation IM service provider has brought a radical and unprecedented change to the application of P2P technology: the arrival of Skype is the consequence of P2P architecture introduced to the Internet telephony service which used to be dominated by client-server technology.
[+] Revolution can not succeed by mimicking your competitor
In the case of traditional telephone service, a call is initiated by a caller, who dials a number, and switched by a telecom operator, which sets up the connection with the receiver; the switch continues to take care of the transmission of the conversation that follows. Every word you say will first enter the telecom operator's switch then be forwarded to the receiver - what we see here is a client-server relationship.
Telecom operator thus needs to invest in costly equipment to provide such service. As the subscriber base continues to swell, the investment will grow in a relatively linear manner. Operators are constantly driven and by the demand for bandwidth by new subscribers - this difficulty is intrinsic to the client-server technology.
Internet phone emerged ten years ago when the operators were thinking about lowering their cost by providing voice communication service via the IP technology. Yet their thinking was still centered on a client-server approach: users purchased an Internet phone set and had it installed at home; users' conversation was still transmitted through operators' switch.
Such way of thinking is no different than that of the traditional operators and has kept the cost of bandwidth and equipment high for Internet phone service providers. To compete with operators they have to set their rates lower in order to attract subscribers, which has capped the growth in their revenue. That is why the Internet phone business remains lukewarm for these years.
Obviously, it is a naive idea to try to compete with traditional telecom operators by mimicking their business model. The telecom market is characterized by severe barriers to new entrants because of the huge investment needed in building up the client-server type telecom infrastructure. To challenge telecom giants, the only way is to come up with a new business model.
[+] The achievement of Skype: challenging the cost structure
Skype, as an IM tool, didn't bring too much surprise to the world at its debut, but it did leave good impression to users by its good sound quality. Its focus on providing Internet phone service was a refreshing approach.
When users using Skype, all communication data is transmitted directly to and from the both parties without any Skype server in between. This P2P model enables Skype to provide service without making huge investment, since the bandwidth cost has been handed down to users.。
This is what really upsets the telecom operators. Telecom operators are not particularly concerned about of potential competitors with deeper pockets as long as the market barrier remains high. Now even small companies can join the business, which has shaken the fundamentals of the industry.
Why Skype's Internet phone model didn't show up ten years ago? As a matter of fact, the broadband service was costly and not very popular then. But now people can enjoy the benefits of high-speed access with relatively less money, so that it is possible now for Skype to shift the bandwidth cost to users themselves with the help of P2P technology.
When the Internet phone service will succeed in revolutionizing the telecom industry? It is when users are able to benefit from higher bandwidth with even less money. At the initial stage, the high perpetration of ADSL and Cable broadband service has paved the way for the scene, now we are expecting FTTB (Fiber to the Building) with stronger broadband capabilities to drive the progress.
In terms of wireless communication, we've already seen 3G on the stage, and we have high hopes for WiMax which promises even high bandwidth. It may take five to ten years to see the results of these developments. Yet we should always keep in mind the big question: what would happen to the world when people can get ten times the bandwidth at the same price they are paying now?
2006/10/22 - By Digitalwall.com - Way to
China Internet/Telecom )
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