ITU-T I.231.3
CIRCUIT-MODE BEARER SERVICE CATEGORIES – CIRCUIT-MODE 64 kbit/s, 8 kHz STRUCTURED BEARER SERVICE USABLE FOR 3.1 kHz AUDIO INFORMATION TRANSFER
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| Organization: | ITU-T |
| Publication Date: | 1 November 1988 |
| Status: | active |
| Page Count: | 7 |
scope:
General description
This circuit-mode bearer service category allows:
- two users (e.g. terminals, PABXs) in a point-to-point configuration to communicate via the ISDN using 3.1 kHz audio information encoding into 64 kbit/s digital signals over the B-channel, in both directions continuously and simultaneously for the duration of a call;
- three or more users in a multipoint configuration (refer to Recommendation I.254 for the supplementary service descriptions on Three-party Service and Conference Calling).
Tones and/or announcements to indicate the progress or otherwise of a call, are provided by the network.
Document History
ITU-T I.231.3
November 1, 1988
CIRCUIT-MODE BEARER SERVICE CATEGORIES – CIRCUIT-MODE 64 kbit/s, 8 kHz STRUCTURED BEARER SERVICE USABLE FOR 3.1 kHz AUDIO INFORMATION TRANSFER
General description
This circuit-mode bearer service category allows:
- two users (e.g. terminals, PABXs) in a point-to-point configuration to communicate via the ISDN using 3.1 kHz audio...