UA - User Agent

 

UAC - User Agent Client

 

UAS - User Agent Server

 

UDDI - Universal Description, Discovery and Integration

 

UK Office of Telecommunications (OFTEL)

 

 

Unavoidable Net Losses

The net loss an operator cannot avoid as a result of being obliged to provide uneconomic universal service or provide service to uneconomic customers.

COM(96)608

 

Unbundled access to the local loop

Europe: Definition according to Com(2000)394

"unbundled access to the local loop" means full unbundled access to the local loop and shared access to the local loop; it does not entail a change in ownership of the copper local loop;

 

Unified numbering environment

Europe: A numbering environment created by melting together a set of national numbering schemes with a singular structure and e.g. single service access codes for general public services

COM(96)590

 

United Nations Commission on International Trade Law (UNCITRAL)

 

United Nations Conference on Trade and Development (UNCTAD)

 

United Nations Development Program (UNDP)

 

United Nations Economic Commission for Africa (UN/ECA)

 

United Nations Economic Commission for Europe (UN/ECE)

 

United Nations Educational, Scientific and Cultural Organisation (UNESCO)

 

Universal International Free-phone Service (UIFS)

ITU-T Recommendation establishing a global free-phone service behind the country code 800. The implementation is a matter of commercial negotiation between individual operators.

 

Universal Mobile Telecommunications System (UMTS)

Europe: Definition according to Decision No 128/1999/EC

For the purpose of this Decision, 'Universal mobile telecommunications system (UMTS)` shall mean a third-generation mobile and wireless communications system capable of supporting in particular innovative multimedia services, beyond the capability of second generation systems such as GSM, and capable of combining the use of terrestrial and satellite components. This system shall at least be capable of supporting the characteristics referred to in Annex I.

 

Universal Personal Telecommunications - 2 (UPT)

ITU-T Recommendation for establishing a personal communications environment where the individual can be reached through a single (personal) number independent of network or location.

COM(96)590

 

URI - Universal Resource Identifier 

 

URL - Universal Resource Locator

 

User

Europe: Definition according to 2002/21/EC - Framework Directive

"user" means a legal entity or natural person using or requesting a publicly available electronic communications service;

Definition according to 2002/58/EC - Data Protection Directive

'user' means any natural person using a publicly available electronic communications service, for private or business purposes, without necessarily having subscribed to this service;

Definition according to Com(2000)393

'user' means a legal entity or natural person using or requesting publicly available electronic communications services;

Definition according to Com(2000)385

'userī shall mean any natural person using a publicly available electronic communications service, for private or business purposes, without necessarily having subscribed to this service;

Definition according to (97/33/EC) and (98/10/EC):

"users" means individuals, including consumers, or organizations using or requesting publicly available telecommunications services

Definition according to COM(96)608:

Users means end-users, including consumers (e.g. residential end-users), and service providers, including telecommunications organisations where the latter provide services which are or maybe provided by others.

Definition according to (92/44/EEC):

users means end users and service providers, including telecommunications organizations where the latter are engaged in providing services which are or may be provided also by others

 

 UTRAN - UMTS Terrestrial Radio Access Network