Other basic features to consider include the phone itself should your provider offer its own handsets. Many residential providers don't since their bridge devices allow them to work with old-style landline phones, but some, especially the larger and more business-oriented players, do offer special VoIP phones. These look and work the same as a regular phone aside from the initial setup process, which will require making sure the phone is connected to your Internet router in some way and then configured to access the VoIP provider's service from there.
Setting up a residential VoIP system can mean big savings on your phone bill, especially if you make a large number of long distance and international calls. In addition, these systems are mobile-optimized, and provide a wealth of features that may just change the way you think of your home phone service. Take a look at the features you need and the budget you can handle, and make the decision that’s right for you.
The products and services in this review roundup are focused on business use and because of this either provide some PBX features or serve as full-on virtual PBXes. This may mean, among other things, that they provide service to telephone sets on your employees' desks. Most also support electronic faxing in some fashion, either directly (which can be a significant challenge for some VoIP services) or by simply integrating an incoming fax with your email system. Other popular features are video conferencing and shared meeting software (so meeting attendees not only hear each other but can present presentations or documents in a shared work space).
From an end user point of view, the actual phone service works in the same way, you pick up the phone to answer a call or to dial a number just like with a landline service. Number porting means you can keep your existing phone number and simply switch it over to your new service provider. The residential VoIP providers take care of the call routing and you can call any destination and receive calls from anyone, just like with regular home phone service.