Glossary168 Installation ManualLine dataLine data is a category of office data that includes both terminal and trunk data.MCUMultipoint Control Unit. A bridging or switching device used in support of multipointvideoconferencing and supporting as many as 28 conference sites. The devices may be inthe form of CPE (Customer Premises Equipment) or may be embedded in the WAN insupport of carrier-based videoconferencing services.M-lawThe PCM voice coding and compression standard used in Japan and North America. APCM encoding algorithm where the analogue voice signal is sampled eight thousand timesper second, with each sample being represented by an eight bit value, thus yielding raw64kbps transmission rate. A sample consists of a sign bit, a three-bit segment specifying alogarithmic range, and a four-bit step offset into a range. All bits of the sample are invertedbefore transmission.Maintenance Console SoftwareThe Maintenance Console Software (MCS) runs on a conventional PC type computer underthe Windows 95 or Windows 98 or Windows NT operating system. The software providesa graphical user interface (GUI) for installing and maintaining the KX-TDA0480 and forconfiguring the KX-TDA0480 internal network features. MCS connection with the KX-TDA0480 is accomplished directly using an RS-232C cable or remotely over a LANconnection.Numbering planIn a communications network, a numbering plan allocates specific numeric codes toidentify each subscriber line, special lines, trunk lines, etc. Numbering plans can be dividedinto the numbering system and number assignments. The numbering system indicates thenumber of digits to be assigned and the basic scheme of number assignment. Theassignment of specific codes is performed according to the numbering system.Numbering plan dataNumbering plan data is a category of office data. It includes both numbering plan androuting information.Office dataGeneric name of configuration data set and stored in the KX-TDA0480. Generally, officedata is divided into four categories: equipment data, numbering plan data, line data, andoperation data. Office data is configured during unit installation and general maintenanceusing the Maintenance Console software. Unit configuration files can also be edited directlyand then can be uploaded directly to a unit.