Dialogic 6.2 - Manual (Page 305)

Loop Start Signaling
November 2009 305
Figure 39. FXO Loop Start – Incoming Call Timing Diagram
II
S
D
N
SM
I M
ESSA
GES:
L4L
3mA
L
ER
TI
N
G
_
R
EQ
U
EST
or
L4L
3mPR
O
G
R
E
S
S
_
R
EQ
U
EST
L4
L3mC
O
N
N
EC
T_R
E
Q
U
EST
L3
L4
m
P
R
E
_
S
E
IZE
L3
L4
m
S
E
T
UP
_
IND
II
S
D
N T
IM
E
RS
:
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k
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er
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ic
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ig
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e
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y
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ns
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ze
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W
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S
:
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t
B B
it
T
R
A
N
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T
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SW
IT
C
H
, F
X
O
:
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Bi
t
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it
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TE:
Th
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agram
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Rev
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8
Re
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1
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DP
Di
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RECE
IVED BITS,
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ANSMITTED
Revis
ed