Data Sheet

SIM900 AT Commands Set
SIM900_ATC_V1.00 187 15.01.2010
314 SIM busy
315 SIM wrong
316 SIM PUK required
317 SIM PIN2 required
318 SIM PUK2 required
320 Memory failure
321 Invalid memory index
322 Memory full
330 SMSC address unknown
331 No network
332 Network timeout
500 Unknown
512 SIM not ready
513 Unread records on SIM
514 CB error unknown
515 PS busy
528 Invalid (non-hex) chars inPDU
529 Incorrect PDU length
530 Invalid MTI
531 Invalid (non-hex) chars in address
532 Invalid address (no digits read)
533 Incorrect PDU length (UDL)
534 Incorrect SCA length
536 Invalid First Octet (should be 2 ore 34)
537 Invalid Command type
538 SRR bit not set
539 SRR bit set
540 Invalid User Data Header IE