Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 54 23.06.2010
1 (Not Allowed)
2 (No cause)
6 (Wrong parameter)
9 (Network access not allowed)
20 (all call instances are used)
21 (ACM over ACM Max)
22 (invalid AOC element)
23 (SIM increase not allowed)
24 (switch off)
25 (Unknown call id)
28 (barred)
65 (Local cause) 1 (state error)
2 (no call entity)
3 (wrong TI)
6 (DTMF buffer overflow)
7 (call disconnected)
17 (No cell available)
32 (Local rejection)
33 (PLMN not allowed)
34 (emergency call not possible)
35 (authentication rejected)
36 (network rejection)
37 (LA not allowed)
38 (Local timeout)
39 (server congestion)
40 (local data rejection)
48 (failed replace PDP context)
66 (MM network cause) See [24.008]
67 (CC network cause) See [24.008]
69 (RP cause) See [24.008]
71 (SIM cause) 0 (Unknown problem)
1 (Memory problem)
2 (File Id not found)
6 (Increase problem)