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Chapter 1: Overview
Trunk Circuit Originated Calls
A call coming from a Trunk Circuit may be switched to either the data network as a VoIP call, a Line Circuit,
or trunk typically for connection to a termination device on the users premises such as a PBX. The routing
decision made by the Tenor CMS is based upon your configuration and the dialed number.
PBX
Intra-trunk Routing - "Hairpinning"
As a result of intra-trunk routing, incoming calls from a particular Trunk Circuit are switched by Tenor CMS
to be routed back out the same trunk circuit routing group.
PBX
1-8
Figure 1-3 Trunk Circuit Call Routing
Line
Alarm
CPU
Circuits
1
DSP
1
2
Link
10/100
Ethernet
Q
UINTUM
TECHNOLOGIES,
INC.
Span
Status
1
2
3
4
TM
TM
DS1
Hot Swap
Circuit
Call
Ground
Strap
Tenor CMS
Figure 1-4 Intra-Trunk Routing
Line
Circuits
T M
T M
Circuit
Call
Ground
Strap
Tenor CMS
Trunk
Circuits
Circuit
TM
Trunk
St at us
Alarm
Statu s
PCI
C PU
PCI
2
B ank
Circuits
TX/RX
Q
UINTUM
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ECHNOLOGIES, INC.
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ECHNOLOGIES, INC.
Reset
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TM
TM
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TECHNOLOGIES,
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Link TX/RX
5
1
2
6
3
7
4
10/100
8
Ethe rnet
TM
CPU
Hot Swap
Fault
Fault
Reset
+ 3.3V
+5V
+12V
-12V
VOIP Call
Ethernet
(IP Network)
Trunk
Circuits
TM
Trunk
Alarm
St atus
Alarm
Status
Circuits
CPU
PCI
CPU
PCI
1
2
DSP
Bank
1
2
Link
TX/RX
10/100
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Q
Ethernet
UINTUM
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ECHNOLOGIES, INC.
ECHNOLOGIES, INC.
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Reset
Q
UINTUM
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TEC HNOLOGIES,
TEC HNOLOGIES,
INC .
INC.
Span
Status
Link TX/RX
1
5
1
2
2
6
3
3
7
4
10/100
4
8
Ethernet
TM
DS1
CPU
Hot Swap
Hot Swap
Fault
Fault
Reset
+3.3V
+ 5V
+12V
-12V
Ethernet
(IP Network)
PSTN A
Call
PSTN B
Ethernet
PSTN A
Circuit
Call
PSTN B
VOIP Call
Ethernet
P/N 480-0005-00-15
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