AT command - limit on URL ?

Hello

I need to transmit through a GPRS module Seeedstudio large URL
but not too much anyway !! less than 1000 characters ...

It works very well but this one truncates my URL has 42 characters
www.xxxxxxxxxx.com/ab/tx.php?
h =, 39, 39, 39, 3

mySerial.println("AT+HTTPPARA=\"URL\",\"www.XXXXXXXXXX.com/ab/tx.php?");
  mySerial.println("h=;39;39;39;39;39;39&t=;22;22;22;22;22;22&p=;50;50;50;50;50;50");
  mySerial.println("\"");
  delay(1000);
  ShowSerialData();
  mySerial.println("AT+HTTPACTION=0");

Response:

AT+HTTPPARA="URL","www.XXXXXXXXXX.com/ab/tx.php?
h=;39;39;39;3
AT+HTTPACTION=0