IP PBX systems offer standard features to businesses that amount to major advances and cost savings on older technology. Voicemail, fax, unified messaging, teleconferencing, contact center capabilities, mobile accessibility and much more can easily be set up and utilized through an IP PBX. The up front expenditure to implement an IP PBX is much less traditional. hardwired systems because Internet-based systems generally require less hardware. IP PBX systems also tend to be all-inclusive, and features like call waiting, 3-way calling, Caller ID and more are standard rather than a la carte.