The mobile phone takes care of registration and connection creation to the GPRS service provided that GPRS service is available.
In Nokia mobile phones there are two options:
Always online - mode: If you have selected this mode (from settings menu), registration or connection* to GPRS network is performed automatically at power on (if GBRS network is available). Always online mode allows fast connection setup and delays are minimized when connecting e.g. to WAP services.
When needed - mode: When this mode is selected, GPRS registration and connection are established only when you start to use applications utilizing GPRS (e.g. WAP and PC dial-up). Connection and registration to GPRS service are closed when you end the WAP browser or PC dial-up application.
*The Always Online functionality depends on operator configuration. Please contact your network operator or service provider for further information.
There are three different classes for GPRS mobiles, A, B and C. Nokia phones support Class B. What do these classes mean? Class A:
Class A mobiles can be connected to both GPRS and GSM services simultaneously.
Class B:
Class B mobiles can be attached to both GPRS and GSM services, using one service at a time. Class B mobiles enable receiving and making a voice call or SMS during GPRS connection. During a voice call or SMS, GPRS service is suspended and resumes automatically after call or SMS session has ended.
Class C:
Class C mobile is attached to either GPRS or GSM voice service. You need to switch manually between services.
Nokia GPRS mobile supports 3+1 or 2+2 timeslot configuration (Multislot class 6). What does this mean and what kind of data transfer speed do I get?
The first digit indicates the number of downlink timeslots i.e. mobile is able to receive from the network. The second digit indicates the number of uplink timeslots i.e. how many timeslots mobile is able to transmit.
Nokia GPRS speeds are theoretically possible up to 64.2 kbit/sec under optimum network conditions. Nokia GPRS terminals support all four channel coding schemes specified in GPRS standard (9.05, 13.4, 15,6, 21.4 per timeslot). Top speeds are not yet possible with the current networks in place, and due to the packet switched nature, the typically achieved mean speeds vary between 15-25 kbit/sec. That makes mobile services comfortable to use. Multislot class 6 enables use of combinations up to 2+2, which is optimum for applications that need sending power e.g. email, and 3+1 for browsing and downloading. Current networks mainly support a maximum of 13.4kbit/sec per timeslot. When the user base grows in the cell, capacity is shared by network between each user. The network also takes care of error correction.
In Nokia mobile phones there are two options:
Always online - mode: If you have selected this mode (from settings menu), registration or connection* to GPRS network is performed automatically at power on (if GBRS network is available). Always online mode allows fast connection setup and delays are minimized when connecting e.g. to WAP services.
When needed - mode: When this mode is selected, GPRS registration and connection are established only when you start to use applications utilizing GPRS (e.g. WAP and PC dial-up). Connection and registration to GPRS service are closed when you end the WAP browser or PC dial-up application.
*The Always Online functionality depends on operator configuration. Please contact your network operator or service provider for further information.
There are three different classes for GPRS mobiles, A, B and C. Nokia phones support Class B. What do these classes mean? Class A:
Class A mobiles can be connected to both GPRS and GSM services simultaneously.
Class B:
Class B mobiles can be attached to both GPRS and GSM services, using one service at a time. Class B mobiles enable receiving and making a voice call or SMS during GPRS connection. During a voice call or SMS, GPRS service is suspended and resumes automatically after call or SMS session has ended.
Class C:
Class C mobile is attached to either GPRS or GSM voice service. You need to switch manually between services.
Nokia GPRS mobile supports 3+1 or 2+2 timeslot configuration (Multislot class 6). What does this mean and what kind of data transfer speed do I get?
The first digit indicates the number of downlink timeslots i.e. mobile is able to receive from the network. The second digit indicates the number of uplink timeslots i.e. how many timeslots mobile is able to transmit.
Nokia GPRS speeds are theoretically possible up to 64.2 kbit/sec under optimum network conditions. Nokia GPRS terminals support all four channel coding schemes specified in GPRS standard (9.05, 13.4, 15,6, 21.4 per timeslot). Top speeds are not yet possible with the current networks in place, and due to the packet switched nature, the typically achieved mean speeds vary between 15-25 kbit/sec. That makes mobile services comfortable to use. Multislot class 6 enables use of combinations up to 2+2, which is optimum for applications that need sending power e.g. email, and 3+1 for browsing and downloading. Current networks mainly support a maximum of 13.4kbit/sec per timeslot. When the user base grows in the cell, capacity is shared by network between each user. The network also takes care of error correction.
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