Asus P5B - Manual (Page 38)

 ASUS TeleSky User Manual
Telephone Dialing Mode
Click the Telephone Dialing Mode tab. The Telephone
Dialing Mode screen appears. Here you can adjust
connection settings.
You can choose to only connect your telephone to the
telecom adapter card or connect both your telephone and
landline to the adapter card.
Connection Option 1 - to make only Skype calls:
1. Pick up your phone.
2. Ensure you can hear the
Skype dial tone.