Hi Tim,

This can be changed on a line by line basis, have a look (in this instance maybe you would like the Ring Once option);

Device>Phone>Directory Number Configuration

Line Settings for this Device

Display (Internal Caller ID)

External Phone Number Mask

Line Text Label

Message Waiting Lamp Policy

**Ring Setting (Phone Idle) Use System Default, Disable, Flash Only, Ring Once, Ring

**Ring Setting (Phone Active) Use System Default, Disable, Flash Only, Ring Once, Ring

Hope this helps!

Rob