Iridium 9602 respond issue

Hey can anyone help me?
I am trying to connect the iridium 9602 with an Arduino Uno.

My connection: (Arduino -> Iridium)
rx->tx
tx->rx
5v->5v
gnd->rnd

I am sending an AT command "AT" and I am not getting any respond back can someone help me?
Any help would be appriciated

Here is my code:
#include <SoftwareSerial.h>

SoftwareSerial mySerial(0,1); //rx,tx

void setup()
{
mySerial.begin(115200);
Serial.begin(115200);
}

void loop()
{
if (mySerial.available())
Serial.write(mySerial.read());
if (Serial.available())
mySerial.write(Serial.read()); //should expect an OK but not getting that

}

#include <SoftwareSerial.h>

SoftwareSerial mySerial(0,1); //rx,tx

void setup()
{
  mySerial.begin(115200);                 
  Serial.begin(115200);

It is NOT possible to do SoftwareSerial on the hardware serial pins while doing hardware serial on those pins. Get over it.

SoftwareSerial also doesn't work at that baud rate.

jremington:
SoftwareSerial also doesn't work at that baud rate.

It can, but there are reliability issues, and not for much data.