19What is SMA ?Synchronous Multiplexer Add DropMultiplexers simultaneously (with the ability to add or remo...
18What is SLT ?Synchronous Line TerminalSynchronous terminal line, some kind of system of telecommun...
11What is SLR ?Synchronous Line RegeneratorBooster line at the same time, some kind of system of teleco...
20What is PAP ?Private Access ProviderThe order of the PAP, etc. provide manufacturer communicatio...
21What is TCT ?Telecommunication Company of TehranTelecommunication company of Iran (LLP) in the year 1350 sol...