international Morse code

See Morse code.

• two-way paging (TWP)
• two-wire circuit
• two-wire circuit
• TWP (Two-Way Paging)
• TWP (Two-Way Paging)
• TWX (TeletypeWriter eXchange)
• type of service (ToS)
• U
• UADSL (Universal Asymmetric Digital Subscriber Line Lite)
• U-Band (Ultralong Wavelength) Band)
• UBR (Unspecified Bit Rate)
• UCAID (University Corporation for Advanced Internet Development)
• UCD (Uniform Call Distributor)
• UCS (Universal Character Set)
• UDP
• UDP
• UGS (Unsolicited Grant Service)
• UHF (Ultra High Frequency)
• UIFN (Universal International Freephone Number)
• U interface
• UL
• ultra high frequency (UHF)
• ultralong wavelength band (U-Band)
• ultraviolet (UV) light
• UL (Underwriters Laboratories)