Epygi Quadro VOIP Telephone System - The Epygi Quadro range of IP PBX systems combines tradtional telephony such as analogue and ISDN lines and analogue telephones with the most up to date Voice Over IP technology. Enabling the use of IP Phones on the Local Area and Wide Area Network (LAN / WAN) and utilising broadband or leased line connectivity to the internet to enable calls to be made and received over the internet (IP Trunks). The Epygi Quadro range includes voicemail and auto attendant as standard.