• HSCSD handsets are typically limited to 4
timeslots, allowing:
• 2 up / 2 down (28.8 kb/s in both directions)
• 3 down and 1 up (43.2 kb/s down 14.4 kb/s up)
• This limitation arises because the handset
operates in half duplex and needs time to change
between transmit and receive modes
• Nokia cardphone (PCMCIA card for laptops) uses
HSCSD (Orange network)
- quotes data downloads at 28.8 kb/s
timeslots, allowing:
• 2 up / 2 down (28.8 kb/s in both directions)
• 3 down and 1 up (43.2 kb/s down 14.4 kb/s up)
• This limitation arises because the handset
operates in half duplex and needs time to change
between transmit and receive modes
• Nokia cardphone (PCMCIA card for laptops) uses
HSCSD (Orange network)
- quotes data downloads at 28.8 kb/s
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