System View
....................................................................................................................................................................................................................................
Overview
This section identifies the different components and describes their
function in the SIP architecture.
Architecture
The SIP for Packet Trunking feature advances the architecture of the
5ESS
®
switch with the introduction of several components. Existing
hardware and software components, including the administrative
module (AM), communication module (CM), switching module 2000
(SM-2000), and peripheral units, are preserved.
Figure 2-7, “SIP Architecture” (2-9) illustrates the SIP call signaling
and bearer architecture.
The signaling components within the packet switch unit model 2
(PSU2) include the:
• general QLPS protocol handler (GQPH), and
• session initiation protocol - protocol handler (SIP PH).
Figure 2-7 SIP Architecture
AM
OIU-IP
IP Bearer Trunks
over OC-3c
DS0 circuits
GSM-2000 for SIP Signaling
PSU2
GQPH
SIP PH
CMP
TMS
SM-2000 for IP Bearer
SM-2000 for
SIP call processing
SM-2000 for TDM Bearer
and call processing
SMP
SMP
SMP
MH
MH
MH
CM
TSI
TSI
TSI
SIP Signaling
over Ethernet
IP bearer
terminal
process
SIP
terminating
terminal
process
MH
Qpipes
MH
Qpipes
MH
Qpipes
GQPH
Qpipes
To/From OSS
D
2
F
- new hardware
MSGS
OIU-TDM
TSI
P
2
F
CF2
Serving
Non-Serving
To/From SMP
QLPS
Architecture
....................................................................................................................................................................................................................................
235-200-118
Issue 3.02B, March 2007
Lucent Technologies
2-9
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