Hi, I don't use this library but a modified version of HWKitche's library.
It's very simple.
You can find my modified version on open-electronics.og
i'm using newSoftSerial library and i'm going no where.
I'm using Arduino ATmega8 board amd SIM300 GSM modem,
1) GSM modems Tx --> pin 2 on Arduino
2) GSM modems Rx --> pin 3 on Arduino
i even changed the connections of Rx an TX, no result.
modem is working fine when i use HyperTerminal(MS) , but i'm not able to communicate GSM modem through Arduino board.