An IP PBX or private branch exchange is a telephone switching system that switches calls between VoIP users on local lines and by letting all users to share a couple of external phone lines. PBX is also able to switch calls between a traditional telephone user and a VoIP user, or between two telephone users in the same way that an orthodox PBX does. If you’re looking to purchase PBX in large quantity for sale, then go through our collection and explore different PBX options on our platform. eWorldTrade brings a broad selection of PBX and their suppliers and manufacturers. You can choose from different types of PBX from our range, offered to you by top PBX manufacturers and suppliers.