1. Open Fax Voip Softphone Control Panel.
2. Click VOIP in TreeView, then click SIP, then click Registrations.
3. To change the preference order for SIP Registrations use <Up> and <Down> buttons. One of the SIP Registrations entries should be selected.
4. To remove one or more SIP Registrations, select the entries, then click <Remove> button.
5. Click <Apply> button to save modified settings for SIP Registrations. All the changes are applied immediately.