What does it mean CSD Internet
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Users questions:CSD Internet habits will mean
Experts answer: circuit-switched phone by way of the Internet known as the wap CSD Internet, because there was this line is used to access wap, then there is no GPRS, why they are called wap access. The mobile Internet access via GPRS packet switched mode afterCome to be called as GPRS Internet GPRS: General Packet Radio Service, it is the use of "packet switching" have developed the concept of a wireless data transmission. GSM system used in data transmission and voice the same circuit-switched mode, require the prior establishment from the send-ended to the receiving end of persistent connection,In the communication process with or without the data came out, the channel is always exclusive. The GPRS packet switching is the data divided into small data packets through different paths simultaneously or successively transmitted. GPRS is not exclusively a fixed circuit, but that a user can occupy multiple channels, multiple users can also account forWith a channel. Thus, GPRS can not waste the network resources to achieve "always online", compared with the original GSM dial-up mode, the Internet facilitates many, more importantly, can achieve high-speed GPRS data transmission. GPRS is 2.5G technology, some people thinkIt is an alternative GSM network. In fact, GPRS is a GSM in the supplementary data, it is by increasing the number of hardware and software upgrades, the existing GSM, a new online overlay data network. Does not replace the original GSM GPRS data capabilities. For most uses GPRS mobile phoneUsers can not only use the GPRS Internet access, you can also use the original GSM dial-up Internet access. Still others think that GPRS is a WAP alternative, as has GPRS, WAP will disappear. In fact, GPRS and WAP are two different areas, WAP is the mobile Internet inContent and services, an agreement, but GPRS is a wireless data transmission. We can imagine an expressway GPRS, WAP is the road vehicles, through this road, we can quickly and easily to enjoy a variety of content and services. The opening of GPRS, and WAP-Development is a promotion. Use of GPRS terminals, quick and convenient to enjoy all kinds of WAP services.
Experts answer: circuit-switched phone by way of the Internet known as the wap CSD Internet, because there was this line is used to access wap, then there is no GPRS, why they are called wap access. The mobile Internet access via GPRS packet switched mode afterCome to be called as GPRS Internet GPRS: General Packet Radio Service, it is the use of "packet switching" have developed the concept of a wireless data transmission. GSM system used in data transmission and voice the same circuit-switched mode, require the prior establishment from the send-ended to the receiving end of persistent connection,In the communication process with or without the data came out, the channel is always exclusive. The GPRS packet switching is the data divided into small data packets through different paths simultaneously or successively transmitted. GPRS is not exclusively a fixed circuit, but that a user can occupy multiple channels, multiple users can also account forWith a channel. Thus, GPRS can not waste the network resources to achieve "always online", compared with the original GSM dial-up mode, the Internet facilitates many, more importantly, can achieve high-speed GPRS data transmission. GPRS is 2.5G technology, some people thinkIt is an alternative GSM network. In fact, GPRS is a GSM in the supplementary data, it is by increasing the number of hardware and software upgrades, the existing GSM, a new online overlay data network. Does not replace the original GSM GPRS data capabilities. For most uses GPRS mobile phoneUsers can not only use the GPRS Internet access, you can also use the original GSM dial-up Internet access. Still others think that GPRS is a WAP alternative, as has GPRS, WAP will disappear. In fact, GPRS and WAP are two different areas, WAP is the mobile Internet inContent and services, an agreement, but GPRS is a wireless data transmission. We can imagine an expressway GPRS, WAP is the road vehicles, through this road, we can quickly and easily to enjoy a variety of content and services. The opening of GPRS, and WAP-Development is a promotion. Use of GPRS terminals, quick and convenient to enjoy all kinds of WAP services.
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