hscsd การใช้

• It also enhances the circuit data mode called HSCSD, increasing the data rate of this service.
• The other innovation in HSCSD is the ability to use multiple time slots at the same time.
• This means that the primary reason to use HSCSD in this environment would be access to legacy dial up systems.
• Some applications such as video calling may prefer HSCSD, especially when there is a continuous flow of data between the endpoints.
• The AMG developed media system could connect to the World Wide Web using HSCSD or GPRS at up to 43 kilobits per second.
• Two circuit-switched data protocols are defined in the GSM standard : Circuit Switched Data ( CSD ) and High-Speed Circuit-Switched Data ( HSCSD ).
• HSCSD is also an option in Enhanced Data Rates for GSM Evolution ( EDGE ) and Universal Mobile Telecommunications System ( UMTS ) systems where packet data transmission rates are much higher.
• In the UMTS system, the advantages of HSCSD over packet data are even lower since the UMTS radio interface has been specifically designed to support high bandwidth, low latency packet connections.
• In addition to GPRS, there are two other GSM technologies which deliver data services : circuit-switched data ( CSD ) and high-speed circuit-switched data ( HSCSD ).
• The user is typically charged for HSCSD at a rate higher than a normal phone call ( e . g ., by the number of time slots allocated ) for the total period of time that the user has a connection active.
• This makes HSCSD relatively expensive in many GSM networks and is one of the reasons that packet-switched General Packet Radio Service ( GPRS ), which typically has lower pricing ( based on amount of data transferred rather than the duration of the connection ), has become more common than HSCSD.
• This makes HSCSD relatively expensive in many GSM networks and is one of the reasons that packet-switched General Packet Radio Service ( GPRS ), which typically has lower pricing ( based on amount of data transferred rather than the duration of the connection ), has become more common than HSCSD.
• Apart from the fact that the full allocated bandwidth of the connection is available to the HSCSD user, HSCSD also has an advantage in GSM systems in terms of lower average radio interface latency than GPRS . This is because the user of an HSCSD connection does not have to wait for permission from the network to send a packet.
• Apart from the fact that the full allocated bandwidth of the connection is available to the HSCSD user, HSCSD also has an advantage in GSM systems in terms of lower average radio interface latency than GPRS . This is because the user of an HSCSD connection does not have to wait for permission from the network to send a packet.
• Apart from the fact that the full allocated bandwidth of the connection is available to the HSCSD user, HSCSD also has an advantage in GSM systems in terms of lower average radio interface latency than GPRS . This is because the user of an HSCSD connection does not have to wait for permission from the network to send a packet.
• Its touchscreen is a 65, 536-color EDGE; and quad-band GSM, UMTS, HSDPA, HSUPA, and HSCSD . The X1 has 512 MB of internal memory ( 400 MB free ), which is expandable to 16 gigabytes using high capacity microSD cards, currently cards up to 32 gigabytes have been released by SanDisk.
• In addition to calling and SMS messaging, the phone has many other features, such as an alarm clock, a HSCSD modem, a web client, 3 games ( Snake 2, Space Impact and Bumper ), a calculator, a'to-do'list application, a calendar, infra-red connectivity, a voice recorder and a stopwatch.