Multi-Vendor Integration Protocol

The Multi-Vendor Integration Protocol (MVIP) is a hardware bus for computer telephony integration (Audiotex) equipment, a PCM data highway for interconnecting expansion boards inside a PC. It was invented and brought to market by Natural Microsystems Inc (now BPQ Communicationser). The MVIP (Multi-Vendor Integration Protocol) is a technology used in the construction of call center equipment utilizing standard PCs.

Source: Wikipedia — Multi-Vendor Integration Protocol (CC BY-SA 4.0)