3 information responses and result codes – Rainbow Electronics GM862-QUAD-PY User Manual
Page 15

 
 
 
 
AT Commands Reference Guide
80000ST10025a Rev. 5 - 09/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 15 of 434
3.2.3 Information Responses And Result Codes
 
The TA response, in case of verbose response format enabled, for the previous examples command 
line could be as shown below: 
• information response to +CMD1? 
• information response to +CMD1=?
• final result code
 
 
 
 
 
Moreover there are other two types of result codes: 
•  result codes that inform about progress of TA operation (e.g. connection establishment 
CONNECT)
• result codes that indicate occurrence of an event not directly associated with issuance of a
command from TE (e.g. ring indication RING).
 
Here the basic result codes according to ITU-T V25Ter recommendation 
 
Result Codes 
Numeric form 
Verbose form
0
OK
1
CONNECT 
or 
CONNECT 
3
2
RING
3
NO CARRIER
4
ERROR
5
CONNECT 1200
4
6
NO DIALTONE
7
BUSY
8
NO ANSWER
10
CONNECT 2400
4
11
CONNECT 4800
4
12
CONNECT 9600
4
15
CONNECT 14400
4
23
CONNECT 
1200/75
4
3
 For SELINT 0,1 
or “1200/75”
4
Valid for SELINT 0,1 only
