TDD number (Q99069260)
unique sequence of digits assigned to a telecommunications textual device for the deaf
- telecommunications device for the deaf number
- telecommunication device for the deaf number
- TDD:
- TTY number
- teletypewriter number
- TTY:
- textphone number
- minicom number
- text telephone number
- teletype number
- TT number
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | No label defined |
||
| English | TDD number |
unique sequence of digits assigned to a telecommunications textual device for the deaf |
|
Statements
2 references
ITU-T E.129 Important numbers (English)
106
All emergencies (speech or hearing impairment) (English)
3 April 2012
4 December 2022
27 September 2020
0 references
1960s
4 references
Telecommunications Device for the Deaf/TeleTypewriter
4 December 2022
TTY and TTY Relay Services (English)
4 December 2022
How to use a TTY and the Telephone Relay Service (English)
2008
4 December 2022
711 for TTY-Based Telecommunications Relay Service (English)
13 January 2022
4 December 2022
3 references
Telecommunications Device for the Deaf/TeleTypewriter
4 December 2022
711 for TTY-Based Telecommunications Relay Service (English)
13 January 2022
4 December 2022
3 references
TTY and TTY Relay Services (English)
4 December 2022
How to use a TTY and the Telephone Relay Service (English)
2008
4 December 2022
711 for TTY-Based Telecommunications Relay Service (English)
13 January 2022
4 December 2022
Identifiers
tel
2 references
9 September 2020
Uniform Resource Identifier (URI) Schemes (English)
tel (telephone)
5.1
Numbers from private numbering plans. . . and other "service codes" (numbers of the form N11 [711] in the United States) cannot be represented in global (E.164) form and need to be represented as a local number with a context. Local numbers MUST be tagged with a 'phone-context' (section 5.1.5) (English)
callto
1 reference
9 September 2020
URLs for Telephony (English)