Softphone clients typically cost $50 to $80 per user. In some cases, softphone licenses are even free, depending on the platform. But, there are drawbacks to the softphone only model.

Discover how switching to a softphone system can save you time and money. Enhance communication through increased calling flexibility.

A softphone is an app that enables users to make and receive phone calls over the internet using a computer or mobile device, instead of traditional landlines or mobile networks.

In our test of two Session Initiation Protocol-based freeware softphone options -- PortSIP and Phoner -- we required them to register and place calls via both freeware Asterisk 1.2 and Zultys MX ...