User Service Information Table
- Kelli Higdon
User Service Information (Octet 1)
| H | G | F | E | D | C | B | A |
|---|---|---|---|---|---|---|---|---|
User transfer capability |
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Speech |
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| 0 | 0 | 0 | 0 | 0 |
Unrestricted digital information |
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| 0 | 1 | 0 | 0 | 0 |
Restricted digital information |
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| 0 | 1 | 0 | 0 | 1 |
3.1 kHz audio |
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| 1 | 0 | 0 | 0 | 0 |
7 kHz audio |
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| 1 | 0 | 0 | 0 | 1 |
Coding Standard |
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ITU standardized coding |
| 0 | 0 |
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National standard |
| 1 | 0 |
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Extension Bit |
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Octet continues through the next octet | 0 |
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Last Octet | 1 |
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User Service Information (Octet 2)
| H | G | F | E | D | C | B | A |
|---|---|---|---|---|---|---|---|---|
Information Transfer Rate |
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Code for packet mode calls |
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| 0 | 0 | 0 | 0 | 0 |
64 Kbps |
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| 1 | 0 | 0 | 0 | 0 |
384 Kbps |
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| 1 | 0 | 0 | 1 | 1 |
1472 kbps (national ansi only) |
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| 1 | 0 | 1 | 0 | 0 |
1536 Kbps |
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| 1 | 0 | 1 | 0 | 1 |
1920 Kbps |
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| 1 | 0 | 1 | 1 | 1 |
Multirate (64 Kbps based) |
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| 1 | 1 | 0 | 0 | 0 |
Transfer Mode |
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Circuit Mode |
| 0 | 0 |
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Packet Mode |
| 1 | 0 |
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Extension bit |
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Octet continues through the next octet | 0 |
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Last Octet | 1 |
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User Service Information (Octet 2a)
| H | G | F | E | D | C | B | A |
|---|---|---|---|---|---|---|---|---|
Establishment |
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Demand |
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| 0 | 0 |
Configuration |
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Point to Point |
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| 0 | 0 |
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Structure |
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Default |
| 0 | 0 | 0 |
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8kHz integrity |
| 0 | 0 | 1 |
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Service data unit integrity |
| 1 | 0 | 0 |
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Unstructured |
| 1 | 1 | 1 |
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Extension Bit |
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Octet continues through the next octet | 0 |
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Last Octet | 1 |
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User Service Information (Octet 2b)
| H | G | F | E | D | C | B | A |
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Information Transfer Rate |
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Code for packet mode calls |
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| 0 | 0 | 0 | 0 | 0 |
64 Kbps |
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| 1 | 0 | 0 | 0 | 0 |
384 Kbps |
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| 1 | 0 | 0 | 1 | 1 |
1472 Kbps |
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| 1 | 0 | 1 | 0 | 0 |
1536 Kbps |
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| 1 | 0 | 1 | 0 | 1 |
1920 Kbps |
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| 1 | 0 | 1 | 1 | 1 |
Multi-rate (64 Kbps based) |
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| 1 | 1 | 0 | 0 | 0 |
Symmetry |
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Bi-directional symmetry |
| 0 | 0 |
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Extension bit |
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Octet continues through the next octet | 0 |
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Last Octet | 1 |
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User Service Information (Octet 2.1) present if octet 2 indicates multi-rate 64 kbps
| H | G | F | E | D | C | B | A |
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Rate Multiplier |
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Reserved (0) |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 |
1 to 30 |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 |
to | ||||||||
31 to 127 |
| 0 | 0 | 1 | 1 | 1 | 1 | 0 |
| 0 | 0 | 1 | 1 | 1 | 1 | 1 | |
to | ||||||||
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| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Extension Bit |
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Octet continues through the next octet | 0 |
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Last Octet | 1 |
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User Service Information (Octet 3)
| H | G | F | E | D | C | B | A |
|---|---|---|---|---|---|---|---|---|
User Information layer 1 protocol |
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ITU standardized rate adaption V.110/X.30 |
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| 0 | 0 | 0 | 0 | 1 |
Recommendation G.711 u-law speech |
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| 0 | 0 | 0 | 1 | 0 |
Recommendation G.722 AND g.725 7 kHz audio |
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| 0 | 0 | 1 | 0 | 1 |
User Service Information (Octet 5)
| H | G | F | E | D | C | B | A |
|---|---|---|---|---|---|---|---|---|
User Information (layer 3 protocol) |
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ANSI T1.607 |
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| 0 | 0 | 0 | 1 | 0 |
Recommendation x.25 packet layer |
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| 0 | 0 | 1 | 1 | 0 |
Layer 3 identifier |
| 1 | 1 |
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Extension Bit |
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Octet continues through the next octet | 0 |
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Last Octet | 1 |
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