2: Introduction
Raymar RT20xx Series Quick Start Guide
Issue: 1.2
Page 6 of
15
2.8
CSD in EGSM900/GSM1800 MHz
CSD (Circuit-Switched Data) mode enables the 3G modem to transmit data over the
EGSM (Extended Global System for Mobile communications) frequency or the GSM
frequency. The modem behaves as a dual-band mobile phone behaves
Содержание RT20 Series
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