A PABX (private automatic branch exchange) is an automatic telephone switching system used within an organisation. A PABX manages calling both within and outside your organisation. Your clients only need to remember one number regardless of which department they wish to reach and the PABX will route the call to the right department.
Simple PABX is a virtual PABX solution that takes away the hustle of buying and managing expensive telephony hardware. With Simple PABX, you can use a basic mobile handset to receive and make phone calls via regular SIM cards or an Internet connected smart phone with an SIP VoIP application installed. You can even avoid phones altogether and make and receive calls from a computer!