Acr & Abbr-6 AT Commands Reference Manual June 30, 2008
TTBD To Be D efi ned
TTDMA Time Division Multiple Access
TTE Terminal Equipment
TTLS Transport Layer Security protocol for establishing a secure connection between a client and a
server. TLS is based on SSL 3.0 protocol.
TTODA Type of Destination Address
TTOOA Type of Origination Address
TTORA Type of Recipient Address
TTOSCA Type of SCA
TTTY Tele Typewriter
TTXD DTE transmit data to MGOM
UUA Unnumbered Acknowledgement
UUIH Unnumbered Information, with Only Header Checksum
UUSB Universal Serial Bus
VVCO Voice Carry Over. This is available for people who cannot hear but are able to speak clearly.
During a VCO relay call, the Deaf or Hard of Hearing caller speaks directly to the person they are
conversing with. When that person responds, a Communication Assistant (CA) types back exactly
what is said to the screen of the TTY or VCO phone.
Abbreviation Full Name
T
U
V