TIE Line Features382 Features GuideTIE Line ServiceDescriptionA TIE line is a privately leased communication line between two or more PBXs, whichprovides effective communications between company members at different locations.TIE lines can be used to call through KX-TD500 to reach another switching system (PBX orCO). By utilizing the TIE lines, the KX-TD500 can support not only communications with thepublic network but with other locations of the company in the private network of which yourKX-TD500 can be a part.To make a call to a person at a distant company location, an extension user must first obtainthe appropriate TIE line to that person's PBX, and then dial the extension number only or alocation number plus extension number.A Network of TIE Lines1. Interfaced by a TIE channel of T1 (Digital)Hardware Requirement: T1 Digital Trunk card (KX-T96187)2. Interfaced by a PRI23 card (Digital)—QsigHardware Requirement: PRI23 card (KX-TD50290)Numbering Plan:Extension users can make a call over the TIE Line Network to other extension users in a distantlocation by one of the following two ways: (Please refer to "TIE Line and TIE LineConnection.")a) Extension Number onlyT1Digital trunkTIE channelKX-TD500 or othermanufacturers’ PBXTIE Line (Digital) T1Digital trunkTIE channelKX-TD500PRI23(Master)PRI23(Slave)KX-TD500 or othermanufacturers’ PBXPRI23 Line (Digital)KX-TD500Extension Number