| Error | Description |
| CME ERROR: 0 | Phone failure |
| CME ERROR: 1 | No connection to phone |
| CME ERROR: 2 | Phone adapter link reserved |
| CME ERROR: 3 | Operation not allowed |
| CME ERROR: 4 | Operation not supported |
| CME ERROR: 5 | PH_SIM PIN required |
| CME ERROR: 6 | PH_FSIM PIN required |
| CME ERROR: 7 | PH_FSIM PUK required |
| CME ERROR: 10 | SIM not inserted |
| CME ERROR: 11 | SIM PIN required |
| CME ERROR: 12 | SIM PUK required |
| CME ERROR: 13 | SIM failure |
| CME ERROR: 14 | SIM busy |
| CME ERROR: 15 | SIM wrong |
| CME ERROR: 16 | Incorrect password |
| CME ERROR: 17 | SIM PIN2 required |
| CME ERROR: 18 | SIM PUK2 required |
| CME ERROR: 20 | Memory full |
| CME ERROR: 21 | Invalid index |
| CME ERROR: 22 | Not found |
| CME ERROR: 23 | Memory failure |
| CME ERROR: 24 | Text string too long |
| CME ERROR: 25 | Invalid characters in text string |
| CME ERROR: 26 | Dial string too long |
| CME ERROR: 27 | Invalid characters in dial string |
| CME ERROR: 30 | No network service |
| CME ERROR: 31 | Network timeout |
| CME ERROR: 32 | Network not allowed, emergency calls only |
| CME ERROR: 40 | Network personalization PIN required |
| CME ERROR: 41 | Network personalization PUK required |
| CME ERROR: 42 | Network subset personalization PIN required |
| CME ERROR: 43 | Network subset personalization PUK required |
| CME ERROR: 44 | Service provider personalization PIN required |
| CME ERROR: 45 | Service provider personalization PUK required |
| CME ERROR: 46 | Corporate personalization PIN required |
| CME ERROR: 47 | Corporate personalization PUK required |
| CME ERROR: 48 | PH-SIM PUK required |
| CME ERROR: 100 | Unknown error |
| CME ERROR: 103 | Illegal MS |
| CME ERROR: 106 | Illegal ME |
| CME ERROR: 107 | GPRS services not allowed |
| CME ERROR: 111 | PLMN not allowed |
| CME ERROR: 112 | Location area not allowed |
| CME ERROR: 113 | Roaming not allowed in this location area |
| CME ERROR: 126 | Operation temporary not allowed |
| CME ERROR: 132 | Service operation not supported |
| CME ERROR: 133 | Requested service option not subscribed |
| CME ERROR: 134 | Service option temporary out of order |
| CME ERROR: 148 | Unspecified GPRS error |
| CME ERROR: 149 | PDP authentication failure |
| CME ERROR: 150 | Invalid mobile class |
| CME ERROR: 256 | Operation temporarily not allowed |
| CME ERROR: 257 | Call barred |
| CME ERROR: 258 | Phone is busy |
| CME ERROR: 259 | User abort |
| CME ERROR: 260 | Invalid dial string |
| CME ERROR: 261 | SS not executed |
| CME ERROR: 262 | SIM Blocked |
| CME ERROR: 263 | Invalid block |
| CME ERROR: 527 | Please wait, and retry your selection later (Specific Modem Sierra) |
| CME ERROR: 528 | Location update failure – emergency calls only (Specific Modem Sierra) |
| CME ERROR: 529 | Selection failure – emergency calls only (Specific Modem Sierra) |
| CME ERROR: 772 | SIM powered down |
