ocr: INBAND INTEGRATION TOPOLOGY Analog Analog urunk centras ports on portson portsion office VRU PBX PBX switoh Anaiog clephones Figure 1. inoand antegratton requires that you atready have a PBX trunk ports on: the PBA comnecr to the central office. Analog ports on the PBX connect to the Voice Response Unif VROand - to analog telephones,
