AT+ (Plus) Commands
The modem responds to the following AT+ command options.The letters AT (or at) must precede all commands except A/ and +++.
+D control data compression
+F control fax application operation
These commands are primarily used by software applications.
Table 4: AT+ (Plus) Commands
Command | Option | Description |
|
|
|
+A8E |
| V.8 Configuration |
|
|
|
| +A8=a,b,c,d |
|
|
|
|
| a options: | Specifies V.8 origination negotiation options |
|
|
|
| 0 | Disable |
|
|
|
| 1 | Enable |
|
| tion |
|
|
|
| 6 | Enable |
|
| tion with +A8x indications |
| b options: | Specifies V.8 answer negotiation options |
|
|
|
| 0 | Disable |
|
|
|
| 1 | Enable |
|
|
|
| 5 | Enable |
|
| with +A8x indications |
| c options: | Specifies the V.8 CI Signal Call Function Octet |
|
| options |
|
|
|
| 00h - FFh, |
|
| default=00h |
|
|
|
|
| d options: | Specifies V.8 control options |
|
|
|
| 0 | Disabled |
|
|
|
| 1 | Enabled, modem control |
|
|
|
| 2 | Enabled, computer control |
|
|
|
+A8T |
| V.8bis Signal and Message Control |
|
|
|
| +A8T=a,b,c, |
|
| d,e,f |
|
| a options: | Specifies V.8bis Signal to Transmit |
|
|
|
| 0 | None |
|
|
|
| 1 | Initiating MRe |
|
|
|
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