A. How to determine the pre-attenuation (for TX and RX) > more
B. What is a mobile list? > more
C. How to download a mobile list > more
D. How to upload a mobile list > more
E. How to upgrade firmware > more
F. I do not know which option I need to buy > more
G. Can I start with the GPRS Go/NoGo option and upgrade later on? > more
H. I have an old unit, which I want to update to GPRS > more
I. I have a 4201S, can this also be upgraded to GPRS? > more
J. Now I have GPRS in my 4202S installed, but the phone does not perform a GPRS attach > more
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