ITU-T H.21 PDF

ITU-T H.21 PDF

Name:
ITU-T H.21 PDF

Published Date:
10/01/1984

Status:
[ Withdrawn ]

Description:

Composition and terminology of international voice-frequency telegraph systems

Publisher:
International Telecommunication Union-T

Document status:
Active

Format:
Electronic (PDF)

Delivery time:
10 minutes

Delivery time (for Russian version):
200 business days

SKU:

Choose Document Language:
$0.6
Need Help?

Edition : 84
File Size : 1 file
Number of Pages : 6
Published : 10/01/1984

History


Related products

ITU-T SERIE Q SUPP 10 SPANISH
Published Date: 12/01/1999
Informe técnico TRQ.2002: Elementos de flujo de información
$12.3
ITU-T T.563
Published Date: 10/01/1996
Terminal Characteristics for Group 4 Facsimile Apparatus - Series T: Terminals for Telematic Services
$36.6
ITU-T Q.1901 CORR 1 FRENCH
Published Date: 04/01/2002
Protocole de commande d'appel indépendante du support Corrigendum 1
$6
ITU-T X.1198
Published Date: 06/01/2013
Virtual machine-based security platform for renewable IPTV service and content protection
$9.9

Best-Selling Products

UNE-CEN ISO/TS 11133-1:2009
Published Date: 09/16/2009
Microbiology of food and animal feeding stuffs - Guidelines on preparation and production of culture media - Part 1: General guidelines on quality assurance for the preparation of culture media in the laboratory (ISO/TS 11133-1:2009)
UNE-CEN ISO/TS 11133-2:2006
Published Date: 05/10/2006
Microbiology of food and animal feeding stuffs - Guidelines on preparation and production of culture media - Part 2: Practical guidelines on performance testing of culture media (ISO/TS 11133-2:2003)
UNE-CEN ISO/TS 11135-2:2009 EX
Published Date: 09/02/2009
Sterilization of health care products - Ethylene oxide - Part 2: Guidance on the application of ISO 11135-1 (ISO/TS 11135-2:2008)
UNE-CEN ISO/TS 15874-7:2005
Published Date: 01/12/2005
Plastics piping systems for hot and cold water installations - Polypropylene (PP) - Part 7: Guidance for the assessment of conformity (ISO/TS 15874-7:2003)
UNE-CEN ISO/TS 15875-7:2005
Published Date: 01/12/2005
Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 7: Guidance for the assessment of conformity (ISO/TS 15875-7:2003)
UNE-CEN ISO/TS 15876-7:2005
Published Date: 01/12/2005
Plastics piping systems for hot and cold water installations - Polybutylene (PB) - Part 7: Guidance for the assessment of conformity (ISO/TS 15876-7:2003)