Xn | Result Code Selection and Call Progress Monitoring |
This command enables tone detection options used in the dialing process. As these functions are chosen, the result codes are also affected. Therefore, this command is frequently used to control the modem chipset’s responses. The primary function of this control is to control the modem chip set’s call response capabilities.
Command | Result Code | Dial Tone Detect | Busy Tone Detect |
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X0 | Disable | Disable | Disable |
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X1 | Enable | Disable | Disable |
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X2 | Enable | Enable | Disable |
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X3 | Enable | Disable | Enable |
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X4 | Enable | Enable | Enable (default) |
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X5 | Enable | Enable | Enable |
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X6 | Enable | Enable | Enable |
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X7 | Disable | Enable | Enable |
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Extended Result Codes
Extended | Effect | |
Result Codes | ||
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Disabled | Displays only the basic result codes OK, CONNECT, | |
RING, NO CARRIER, and ERROR. | ||
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| Displays basic result codes, along with the connect | |
Enabled | message and the modem’s data rate, and an | |
indication of the modem’s error correction and data | ||
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| compression operation. | |
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Dial Tone Detect | ||
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Dial Tone | Effect | |
Detect | ||
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| The modem dials a call regardless of whether it detects | |
Disabled | a dial tone. The period of time the modem waits before | |
| dialing is specified in register S6. | |
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| The modem dials only upon detection of a dial tone, | |
Enabled | and disconnects the call if the dial tone is not detected | |
| within 10 seconds. | |
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