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80000ST10028 Rev. 0 - 02/01/07  

  

Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved 

 

page 15 of 35 

 

1.4   GPRS data state exit 

 

ΠLCP Terminate Request 
Í LCP Terminate Acknowledge

 

 
•  Wait for NO CARRIER response. 
 
or in alternative:  
 

• 

send escape sequence: 

 

 

+++ 
 

•  wait for 2s ( default silence time)  
 
•  wait for response: 
 

OK 

Telit module is in command 

mode now 

proceed ahead 

ERROR 

some error occurred 

check command syntax and 

timing and retry 

NO CARRIER 

connection has been closed 

proceed ahead 

 

• 

send command 

 

 

ATH<cr> 

 
•  wait for response: 
 

OK 

GPRS connection has been 

closed 

 

ERROR 

some error occurred 

check command syntax and 

retry