| Use this option to enable or disable the DSX built-in soft modem. |
| Option | Description |
|---|---|
| No (0) | Disabled. |
| Yes (1) | [Default] Enabled. |
| Use this option to specify the Built-In Modem extension number. A call routed to this extension number is answered by the Built-In Modem. |
| Option | Description |
|---|---|
| Digits | Extension number. [Default] = 429. |