get_string
Description:
Gets the nickname string for the Modem3gppDrxCycle specified at val
      .
Parameters:
| val | a MMModem3gppDrxCycle. | 
Returns:
| a string with the nickname, or  | 
Gets the nickname string for the Modem3gppDrxCycle specified at val
      .
| val | a MMModem3gppDrxCycle. | 
| a string with the nickname, or  |