JSI Tip 0529 - Your NT RAS client can command your NT RAS Server how long to wait before calling back.

If your Windows NT RAS server has the Callback feature enabled, your Windows NT RAS client can configure the callback delay. The default is 12 seconds. Navigate to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan\PPP

From the Edit menu, Add Value name DefaultCallbackDelay as a type REG_DWORD and set the decimal value to any number between 0 and 255 seconds.