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ITU-T E.721

Network grade of service parameters and target values for circuit-switched services in the evolving ISDN

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Organization: ITU-T
Publication Date: 1 May 1999
Status: active
Page Count: 11

Document History

ITU-T E.721
May 1, 1999
Network grade of service parameters and target values for circuit-switched services in the evolving ISDN
A description is not available for this item.
E.721
January 1, 1991
Network Grade of Service Parameters and Target Values for Circuit-Switched Services in the Evolving ISDN
A description is not available for this item.
E.721
January 1, 1989
Network Grade of Service Parameters in ISDN - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 2 pp
A description is not available for this item.

References

This document is referenced by:
ATIS 0300100 - IP Network Disaster Recovery Framework
Published by ATIS on December 1, 2009
This technical report provides a framework that encompass the complimentary network management actions that may be required by interconnected Network Providers of Next Generation Network (NGN)...
This document is referenced by:
EG 202 009-2 - User Group; Quality of telecom services; Part 2: User related indicators on a service specific basis
Published by ETSI on December 1, 2014
In the current competitive world, Quality of Service (QoS) is becoming, jointly with cost, a key parameter in selling and buying telecommunications services. At the same time, technology and...
This document is referenced by:
TS 100 392-16 - Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 16: Network Performance Metrics
Published by ETSI on September 1, 2006
A description is not available for this item.
This document is referenced by:
EN 301 104 - Human Factors (HF); Human Factors Requirements for a European Telephony Numbering Space (ETNS)
Published by ETSI on October 1, 1998
A description is not available for this item.
This document is referenced by:
TS 101 329-2 - Telecommunications and Internet Protocol Harmonization over Networks (TIPHON) Release 3; End-to-End Quality of Service in TIPHON Systems; Part 2: Definition of Speech Quality of Service (QoS) Classes
Published by ETSI on January 1, 2002
A description is not available for this item.
This document is referenced by:
EG 202 009-1 - User Group; Quality of telecom services; Part 1: Methodology for identification of indicators relevant to the Users
Published by ETSI on December 1, 2014
In the current competitive world, Quality of Service (QoS) is becoming, jointly with cost, a key indicator in selling and buying telecommunications services. At the same time, technology and...
This document is referenced by:
ATIS 0300106 - Intercarrier Call Completion/Call Termination Handbook
Published by ATIS on January 1, 2021
Call completion/call termination in today’s Public Switched Telephone Network (PSTN)1 depends on coordination between different service provider (SP) entities, each playing their part in setting up a...
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