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| Chapter 5 – AT Commands, | ||
V.92 Commands |
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Command: | +MS= | Modulation Selection |
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Values: |
| See description. |
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Defaults: |
| See description. |
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Description: |
| This | |||
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| specifies the highest downstream and upstream connection rates using one to four | |||
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| subparameters. |
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| The command syntax is |
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| +MS=[mod][,[automode][,[0][,[max_rate][,[0][,[max_rx_rate]]]]]]<CR> | |||
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| Subparameters that are not entered retain their current value. Commas separate optional | |||
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| subparameters, and must be inserted to skip a subparameter. Example: +MS=,0<CR> | |||
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| disables automode and keeps all other settings at their current values. | |||
| +MS=? Reports supported options in the format (list of supported mod values),(list of supported | ||||
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| automode values),(0),(list of supported max_rate values),(0),(list of supported max_rx_rate | |||
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| values). Example: +MS: (BELL103, V21, BELL212A, V22, V22B, V23C, V32, V32B, V34, | |||
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| V90, V92), (0, 1), (0), | |||
| +MS? | Reports current options in the format mod, automode, 0, max_rate, 0, max_rx_rate. | |||
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| Example: +MS: V92, 1, 0, 31200, 0, 56000. | |||
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| Subparameters |
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| mod | Specifies the preferred modulation (automode enabled) or the modulation to use in | |||
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| originating or answering a connection (automode disabled). The default is V92. | |||
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| mod | Modulation | Possible rates (bps)1 |
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| V922 | V92 | 56000, 54666, 53333, 52000, 50666, 49333, |
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| 48000, 46666, 45333, 44000, 42666, 41333. |
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| 40000, 38666, 37333, 36000, 34666, 33333, |
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| 32000, 30666, 29333, or 28000 |
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| V903 | V.90 | 56000, 54666, 53333, 52000, 50666, 49333, |
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| 48000, 46666, 45333, 44000, 42666, 41333. |
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| 40000, 38666, 37333, 36000, 34666, 33333, |
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| 32000, 30666, 29333, or 28000 |
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| V34 | V.34 | 33600, 31200, 28800, 26400, 24000, |
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| 21600,19200, 16800, 14400, 12000, 9600, |
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| 7200, 4800, or 2400 |
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| V32B | V.32bis | 14400, 12000, 9600, 7200, or 4800 |
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| V32 | V.32 | 9600 or 4800 |
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| V22B | V.22bis | 2400 or 1200 |
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| V22 | V.22 | 1200 |
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| V23C | V.23 | 1200 |
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| V21 | V.21 | 300 |
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| Bell212A | Bell 212A | 1200 |
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| Bell103 | Bell 103 | 300 |
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| N o t e s : |
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| 1. See optional <automode>, <max_rate>, and <max_RX_rate> |
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| subparameters. |
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| 2. Selects V.92 modulation as first priority. If a V.92 connection |
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| cannot be established, the modem attempts V.90, V.34, V.32bis, etc. |
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| 3. Selects V.90 modulation as first priority. If a V.90 connection |
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| cannot be established, the modem attempts V.34, V.32bis, etc. |
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SocketModem Global MT5634SMI Developer’s Guide | 35 |
