VoIP phone systems have opened many doors for business owners. No longer wanting to rely on outdated PST lines linked through a PBX system for fax list communication needs, fast moving companies have changed to VoIP. The use of a piece of software called a soft phone combined with VoIP has reaped big returns from a relatively small investment on PBX phone replacement systems.The PBX system has been trusted by businesses for almost half a fax list century. However, with the arrival of VoIP has brought an advancement in business communication and many benefits to those using the technology.Firm believers in PBX systems for business communication will remain adamant that their device has better call quality and allows greater control over their fax list communication. Yet with the right VoIP phone systems, business fax list users are left with more control than any PBX can offer and sound quality equal to that of PST lines.A soft phone is software which allows a VoIP user to make calls through an internet connected system such as a fax list computer. The soft phone uses an icon with buttons for various necessary functions and appears on a computer screen. The user clicks on the virtual buttons to make VoIP calls or can use hardware such as an IP phone or headset. An IP phone appears almost identical to normal telephone fax list handsets, but uses a USB attachment to a computer to allow callers to communicate over a VoIP connection. Using VoIP phone systems as a PBX phone replacement fax list system delivers sizable benefits for users.A soft phone allows free calls between branches, multiple calls and user discretion over who can contact them and at what time and where. Costs incurred through a VoIP phone system amount to much less than traditional PBX.Soft phones are also fully programmable so that VoIP phone systems can be used anytime. Voicemail and fax is sent to a personalized inbox and fax list converted into digital files. Online tools allow personal customization in real-time and are very user friendly, not requiring any training.The majority of businesses using PBX replacement systems list their most noticeable benefits as lowered costs, time-saving functions and greater usability and control fax list through a more user-friendly interface.