February 2003
1-7
1000-A2-GN22-00
1. Voice-over-Broadband Networking
These steps describe the network interaction that occurs when a
subscriber receives a call (
Figure 1–6
):
1.
The Class 5 switch sends an incoming call request message to
the CPX through the PSTN (GR-303) TMC.
2.
The Class 5 switch assigns a time slot.
3.
The CPX sends a setup message to the IAD, verifying both
bandwidth and port availability.
4.
The CPX connects the specified time slot to an IAD port.
5.
The IAD initiates ringing.
6.
The IAD notifies the switch via the CPX when the first ring is
complete and connects the station through to the host.
7.
The Class 5 switch sends a caller ID to the IAD via the CPX.
8.
When the station answers, the CPX sends a
call connected
message to the Class 5 switch.
9.
The Class 5 switch notifies the CPX when the call is cleared.
10.
The CPX notifies the switch when the station hangs up.
Figure 1–6. Subscriber Receives a Call
6
8
10
5
6
3
8
10
7
4
6
8
10
1
2
7
9
0353
PSTN
Telephone
IAD
CPX-1000
Class 5 Switch
Summary of Contents for Jetstream CPX-1000
Page 14: ...Preface 1000 A2 GN22 00 x February 2003...
Page 24: ...1 Voice over Broadband Networking 1000 A2 GN22 00 1 10 February 2003...
Page 64: ...2 CPX 1000 Voice Services Platform Description 1000 A2 GN22 00 2 40 February 2003...
Page 100: ...3 Installing the CPX 1000 1000 A2 GN22 00 3 36 February 2003...
Page 128: ...5 Repair Procedures 1000 A2 GN22 00 5 14 February 2003...
Page 156: ...D Specifications 1000 A2 GN22 00 D 8 February 2003...
