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How can I control the modem speaker volume in Windows XP or Windows 2000?

A. You can use the modem properties to turn the modem speaker on or off. Alternatively, you can use a user initialization string to adjust this setting by performing the following steps:

  1. Start the Phone and Modem Options Control Panel applet (go to Start, Settings, Control Panel, Phone and Modem Options).
  2. Select the Modems tab.
  3. Select the modem, and click Properties.
  4. Select the Advanced tab.
  5. Add one of the options from the table below to the initialization string, and click OK.
  6. Close the Control Panel applet.
Setting Effect
L0 Selects the lowest speaker volume
L1 Selects a low speaker volume
L2 Selects medium speaker volume
L3 Selects high speaker volume
M0 Disables the speaker so that it's always off
M1 Enables the speaker when the modem is establishing a call, but disables the speaker after the modem detects the carrier
M2 Enables the speaker so that it's always on
M3 Disables the speaker when dialing the modem and receiving the carrier signal, but enables the speaker when the modem is answering a call
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