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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 |
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0 |
0 |
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National standard |
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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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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 |
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0 |
0 |
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Packet Mode |
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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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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 |
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0 |
0 |
0 |
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|
8kHz integrity |
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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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|
H |
G |
F |
E |
D |
C |
B |
A |
Information Transfer Rate |
|
|
|
|
|
|
|
|
Code for packet mode calls |
|
|
|
0 |
0 |
0 |
0 |
0 |
64 kbps |
|
|
|
1 |
0 |
0 |
0 |
0 |
384 kbps |
|
|
|
1 |
0 |
0 |
1 |
1 |
1472 kbps |
|
|
|
1 |
0 |
1 |
0 |
0 |
1536 kbps |
|
|
|
1 |
0 |
1 |
0 |
1 |
1920 kbps |
|
|
|
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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|
H |
G |
F |
E |
D |
C |
B |
A |
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 |
|
|
|
|
|
|
|
Last Octet |
1 |
|
|
|
|
|
|
|
|
H |
G |
F |
E |
D |
C |
B |
A |
User Information layer 1 protocol |
|
|
|
|
|
|
|
|
ITU standardized rate adaption V.110/X.30 |
|
|
|
0 |
0 |
0 |
0 |
1 |
Recommendation G.711 u-law speech |
|
|
|
0 |
0 |
0 |
1 |
0 |
Recommendation G.722 AND g.725 7 kHz audio |
|
|
|
0 |
0 |
1 |
0 |
1 |
|
H |
G |
F |
E |
D |
C |
B |
A |
User Information (layer 3 protocol) |
|
|
|
|
|
|
|
|
ANSI T1.607 |
|
|
|
0 |
0 |
0 |
1 |
0 |
Recommendation x.25 packet layer |
|
|
|
0 |
0 |
1 |
1 |
0 |
Layer 3 identifier |
|
1 |
1 |
|
|
|
|
|
Extension Bit |
|
|
|
|
|
|
|
|
Octet continues through the next octet |
0 |
|
|
|
|
|
|
|
Last Octet |
1 |
|
|
|
|
|
|
|