TIA/EIA/IS 840 : A2001
Current
The latest, up-to-date edition.
MINIMUM PERFORMANCE STANDARDS FOR TEXT TELEPHONE SIGNAL DETECTOR AND TEXT TELEPHONE SIGNAL REGENERATOR
12-01-2013
Describes text telephones as they enable persons with hearing issues to communicate over conventional telephone lines, using written text messages. There are two types of text telephones: TTY (TeleTYpe) and TDD (Telecommunications Devices for the Deaf). TTYs are basically mechanical teleprinters and TDDs are their electronic counterparts.
Committee |
TR-45.3
|
DevelopmentNote |
To be used in conjunction with TIA/EIA/IS 823. (10/2004) Not available separately, available in CD-ROM format with TIA/EIA/IS 823. (12/2006)
|
DocumentType |
Standard
|
PublisherName |
Telecommunications Industry Association
|
Status |
Current
|
TS 126 231 : 13.0.0 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) (GSM); UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); CELLULAR TEXT TELEPHONE MODEM; MINIMUM PERFORMANCE REQUIREMENTS (3GPP TS 26.231 VERSION 14.0.0 RELEASE 14) |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.