Keep The Usage Of Your Traditional Regular Phone/Cell Phone To The Minimum
Use these phones only when you have to: power outage or emergency calling if not available on your VoIP phone.
 

Talk By Free VoIP When You Can
Free VoIP is the greatest benefit of internet telephony. Two pcs with the software of the same VoIP provider can make unlimited phone calls without paying anything. You can use this VoIP advantage to keep in touch with your relatives or friends if you schedule the calls beforehand, like a weekly call to your aunt every Sunday at 12 o'clock.
 

Use Softphone
With softphone, that is pc to phone calls VoIP, you can make calls to any phone call paying fraction of what you pay on traditional phones. The advantage here is that you can make such calls using a handset or microphone and speakers of your computer.
 

Make International and National Calls By VoIP
Get a domestic plan which offers unlimited calling for a flat monthly fee which can be as little as 10 dollars a month with some calling plans. When you have to make international calls you have to pay extra but that is also a few cents a minute. Search for calling plans that suit your usual business or domestic needs.
 

Connect To WiFi Hotspots On The Go
When you are in the range of a WiFi hotspot, use your WiFi cell phone or laptop to make cheap calls - you can get this service free also in some cafes, municipal and college wifi hotspots.
 

Use VoIP For Conference Calling
Conference calling is a regular feature of most VoIP plans while Yahoo IM lets you hold a mega conference of as many as 500 persons at a time. Use this facility to talk to your friends and relatives or business contacts.
 

Take Advantage of Special Features of VoIP
VoIP lets you do things which are either not possible on traditional phones or for which have to pay extra. For example you never miss a call with VoIP if you set it up to send your unattended calls to voicemail or to find you wherever you may be. Explore VoIP features to use them for maximum advantage.