Mega UART3 pins

[TeknoBeek]

I'm using Rx3 and Tx3 with AT commands on software Serial (with MEGA 2560)

But although GSM library uses softwareSerial... it does not work.

I've changed the GSM3IO and GSM3SoftSerial like this...

#elif defined(AVR_ATmega2560) || defined(AVR_ATmega1280)

#define __TXPIN__ 14
#define __RXPIN__ 15
#define __RXINT__ 4

Any ideas ???