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  | # FILE:/etc/ppp/gprs-chat 
 |  # Copyright (C) 2011 GuoWenxue <guowenxue@gmail.com> 
 |  # This is second part of the ppp dial script. It will perform the connection 
 |  # protocol for the desired connection by chat with modem. 
 |  # 
 |          ABORT           'BUSY'                              
 |          ABORT           'NO ANSWER'                         
 |          ABORT           'NO CARRIER'                        
 |          ABORT           'NO DIALTONE'                       
 |          ABORT           'ERROR'                             
 |          ABORT           '\nRING\r\n\r\nRING\r'              
 |          TIMEOUT         20                                  
 |          ''              ATE0                     
 |          OK              AT+CGDCONT=1,"IP","$APN" 
 |          OK              ATD$DIALNUM                       
 |          SAY             " + requesting data connection\n"   
 |          CONNECT         ''                                  
 |          SAY             " + connected\n" 
 |  
  |