TUP meaning in Telecommunication ?

Answer:

What is Telephone User Part mean?

Telephone User Part (TUP) provides conventional PSTN telephony services across the Signalling System No. 7 (SS7) network. TUP was the first layer 4 protocol defined by the standards bodies and as such did not provision for ISDN services. It has now largely been replaced by ISUP. However, it can still be found in operational use in some parts of the world (e.g., China).

TUP is defined in ITU-T Recommendations Q.721-725. These define the international telephone call control signalling functions for use over SS7.

Various national variants of TUP have evolved, some of which provide varying degrees of support for ISDN. E.g. French SSUTR2 and Chinese TUP (Specification GF001-9001).

reference

Full Form	Category
Temporary Use Permit	Academic & Science
Theosophical University Press	Academic & Science
Technological University of the Philippines	Academic & Science
Tupelo (ms)	Airport Code
Tupperware Corporation	Business
The Uzagaku Project	Community
Telephony User Part	Computer and Networking
Trace Utility Program	Computing
TenUp	Cryptocurrency
Touch Up Paint	General
Targeting the Ultra Poor	General
Tal Urinary Protein	General
The Ultimate Phase	General
Tal Unit Price	General
Tremendous Upside Potential	General
Tars Uni Protocol	General
Twin Unit Pack	General
TIRUPPUR	Indian Railway Station
Trans-Urethral Puncture	Medical
The Ultimate Post	Messaging
Tupelo, Mississippi USA	Regional
Telephone User Part	Telecommunication