Text Messaging - Nokia 31 User Manual

GPRS
With General Packet Radio Service (GPRS), data is transferred over the network in small, efficient,
standardized packets. The Nokia 31 terminal supports GPRS multi-slot class 6 protocol which
provides multiple timeslots for data transfer. The use of GPRS services requires that your network
service provider supports GPRS (General Packet Radio Service) technology and you must have
subscribed to this service. The pricing of GPRS services may differ from that of normal GSM data
services. Please contact your network service provider for more information.
CSD
Circuit Switched Data (CSD) offers wireless data transfer at rates of up to 14.4 kilobits/sec.

Text Messaging

Text messaging (also called "Short Message Service") is used to send and receive messages
containing a maximum of 160 characters. Text messaging is a convenient way to pass data quickly
and easily among Nokia 31 terminals.
USSD
Unstructured Supplementary Services Data (USSD) offers reliable, interactive messaging services.
USSD can be used to send and receive messages containing a maximum of 182 characters. With
USSD, the session is established for the duration of the connection. This increases data transfer
reliability and shortens response times.The use of USSD services requires that your network service
provider supports USSD technology and you must have subscribed to this service.
9
2002 Nokia Corporation. All rights reserved.
U.S. English