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Download Lucent Technologies 555-233
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DEFINITY Enterprise Communications Server Release 8.2 Upgrades and Additions for R8r 555-233-115 Issue 1 April 2000 Glossary and Abbreviations GL-49 trunk group Telecommunications channels assigned as a group for certain functions that can be used interchangeably between two communications systems or COs. TSC Technical Service Center TTI Terminal translation initialization TTR Touch-tone receiver TTT Terminating trunk transmission TTTN See tandem tie-trunk network (TTTN). TTY Teletypewriter U UAP Usage-allocation plan UART Universal asynchronous transmitter UCD Uniform call distribution UCL Unrestricted call list UDP See Uniform Dial Plan (UDP). UL Underwriter Laboratories UM User manager Uniform Dial Plan (UDP) A feature that allows a unique 4- or 5-digit number assignment for each terminal in a multiswitch configuration such as a DCS or main-satellite-tributary system. UNMA Unified Network Management Architecture UNP Uniform numbering plan UPS Uninterruptible power supply
