To understand how the Internet relates to the five CSIs, it helps to first recog- nize what the Internet is. No doubt Bell would be captivated by the enormity of what we call the Internet. By definition, it is a network of networks. But just like VoIP can run on any of the five CSIs in varying degrees of quality, the Internet can also be accessed from any of the five CSIs in varying degrees of quality and security.
VoIP over Internet
Yes, the Internet is a network of networks, and the Web is one of its largest applications. But the Internet is also a network that is accessible through all five CSIs.
Since the Web emerged into the private sector in the early 1990s, the entire Internet has been converted to a tiered infrastructure that predetermines broadly what kind of quality you can expect over your Internet connection. What tier your Internet provider operates at is a major factor that controls your bandwidth throughput and therefore the quality of your VoIP services. Several new terms surfacing in light of VoIP are VSP, for VoIP service provider, as well as VoIP provider and VoIP hosting provider.
VoIP in the corporate sector
Technically, the Internet is a network (a transport) and VoIP is a network transport service. Both the transport and the transport service are provided in varying degrees of quality on all five CSIs. All five CSIs can provide access to the Internet, just as all five CSIs can support VoIP services.
Keep in mind that if you run VoIP on the Internet, at least one CSI is involved. The Internet is not a CSI: It is a network (global though it may be) that results from all five CSIs providing access to it.
Even though VoIP was developed in 1995, the corporate world did not con- sider adopting it in a big way until 2001. Issues pertaining to quality and secu- rity complicated VoIP’s adoption. These issues have been largely addressed, and the corporate sector is rapidly adopting VoIP. The transports available
on the DS and OC CSIs are being used most often by companies to set up their VoIP networks to run over private, dedicated network transports.
VoIP in the consumer sector
Another point in common between the Internet and VoIP is that they use the same group of protocols. When some people hear the “IP” portion of “VoIP,” they incorrectly assume that because VoIP uses the TCP/IP protocols used on the Internet, VoIP itself can run only on the Internet. From a consumer’s perspective, however, such confusion is easy to under- stand. To implement VoIP, consumers require broadband access to the Internet. Internet access and VoIP go hand-in-hand.
Note that broadband Internet access for VoIP is an artifact of only consumer implementation of VoIP. It is often not a consideration in corporate VoIP, which most often relies on dedicated lines that provide no Internet access.
Do not confuse the use of the IP protocols with the use of the Internet; keep their distinction separate. TCP/IP protocols can run on any network in any CSI. VoIP’s service quality varies, but it can run on any of the five CSIs. It can run on all dedicated and wireless transports.
VoIP over Internet
Yes, the Internet is a network of networks, and the Web is one of its largest applications. But the Internet is also a network that is accessible through all five CSIs.
Since the Web emerged into the private sector in the early 1990s, the entire Internet has been converted to a tiered infrastructure that predetermines broadly what kind of quality you can expect over your Internet connection. What tier your Internet provider operates at is a major factor that controls your bandwidth throughput and therefore the quality of your VoIP services. Several new terms surfacing in light of VoIP are VSP, for VoIP service provider, as well as VoIP provider and VoIP hosting provider.
VoIP in the corporate sector
Technically, the Internet is a network (a transport) and VoIP is a network transport service. Both the transport and the transport service are provided in varying degrees of quality on all five CSIs. All five CSIs can provide access to the Internet, just as all five CSIs can support VoIP services.
Keep in mind that if you run VoIP on the Internet, at least one CSI is involved. The Internet is not a CSI: It is a network (global though it may be) that results from all five CSIs providing access to it.
Even though VoIP was developed in 1995, the corporate world did not con- sider adopting it in a big way until 2001. Issues pertaining to quality and secu- rity complicated VoIP’s adoption. These issues have been largely addressed, and the corporate sector is rapidly adopting VoIP. The transports available
on the DS and OC CSIs are being used most often by companies to set up their VoIP networks to run over private, dedicated network transports.
VoIP in the consumer sector
Another point in common between the Internet and VoIP is that they use the same group of protocols. When some people hear the “IP” portion of “VoIP,” they incorrectly assume that because VoIP uses the TCP/IP protocols used on the Internet, VoIP itself can run only on the Internet. From a consumer’s perspective, however, such confusion is easy to under- stand. To implement VoIP, consumers require broadband access to the Internet. Internet access and VoIP go hand-in-hand.
Note that broadband Internet access for VoIP is an artifact of only consumer implementation of VoIP. It is often not a consideration in corporate VoIP, which most often relies on dedicated lines that provide no Internet access.
Do not confuse the use of the IP protocols with the use of the Internet; keep their distinction separate. TCP/IP protocols can run on any network in any CSI. VoIP’s service quality varies, but it can run on any of the five CSIs. It can run on all dedicated and wireless transports.
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