ISDN Line Simulator User’s Manual
40-400-00012, Rev. E
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RELease
COMPlete
RESTart
RESTart
ACKnowledge
RETrieve
(NTI)
RETrieve ACKnowledge (NI-1/NTI)
RETrieve REJect (NI-1/NTI)
SETUP
SETUP
ACKnowledge
STATUS
STATUS
ENQuiry
TRANSfer*
TRANSfer
REJect
Typical Call Control Sequence
Figure 5 illustrates a common method for depicting a Call Control (Layer 3)
message exchange, end-to-end, for setting up and releasing a successful
call. The near-end or originating caller is shown on the left, while the far-end
or terminating caller is on the right. In this example, the Directory Number is
dialed using the keypad.
Figure 5. Call Control Message Exchange Example
Содержание ILS-C
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