Table 4: AT+ (Plus) Commands
Command | Option | Description |
|
|
|
| 1 | Computer transmits a Flag on an |
|
| frame, and notifies the modem of any |
|
| |
| d options | Specifies |
|
|
|
| e options | Specifies the Cyclic Response Code (CRC) type |
|
|
|
| 0 | Disabled. No CRC generation or checking. |
|
|
|
| 1 | In Framed |
|
| CRC in the Transmit direction and the modem gen- |
|
| erates |
|
|
|
| f options: | Specifies |
|
|
|
| 0 | NRZI encoding and decoding are disabled. |
|
|
|
+ETBM |
| Disconnect Buffer Delay Control |
|
|
|
| +ETBM=p,q |
|
| r |
|
| p options: | Specifies the disconnect buffer delay with pending |
|
| transmit data |
| 0 | Discard buffered data and disconnect |
|
|
|
| 1 | Attempt to transmit until all data is delivered, then |
|
| disconnect. Ignore timer. |
| 2 | Attempt to transmit until all data is delivered or |
|
| timer expires. |
| q options: | Specifies the disconnect buffer delay with pending |
|
| receive data |
|
|
|
| 0 | Discard buffered data and disconnect |
|
|
|
| 1 | Attempt to transmit until all data is delivered, then |
|
| disconnect. Ignore timer. |
| 2 | Attempt to transmit until all data is delivered or |
|
| timer expires. |
|
|
|
| r options: | Disconnect buffer delay timer, in |
| ments | |
| default=0 |
|
+FCLASS |
| Fax/Data Mode |
|
|
|
| +FCLASS= | Data Mode |
| 0 |
|
|
|
|
| +FCLASS= | Fax Class 1 |
| 1 |
|
| +FCLASS= | Voice Mode (Not available in Data/Fax and Data/ |
| 8 | Fax/TAM modems.) |
+FLO |
| Fax Flow Control |
|
|
|
| +FLO=0 | None |
|
|
|
17