E-Isup - Cisco Signaling Interface H.323 User Manual

Cisco HSI System Description
Figure 1-1
Callers
PGW 2200
The PGW 2200 consists of the hardware and software that perform the signaling and call control tasks
(such as digit analysis, routing, and circuit selection) and seamlessly switch calls from the PSTN through
to the IP network.
IP Network
The purpose of the Cisco HSI is to enable the PGW 2200 to interoperate with the H.323 network.
Cisco HSI System Description
The Cisco HSI system has two subsystems ( see
•
•
Cisco H.323 Signaling Interface User Guide
1-2
Cisco HSI System Overview
Operational
support systems
System
administrator
Voice/
Access
network
signaling
Operations, Administration, and Maintenance (OAM) subsystem
Call control subsystem
Chapter 1
H.323 signaling
interface

E-ISUP/

H.323
RUDP
Voice
IP
network
Cisco PGW 2200
2) :
Fi gur e 1-
Cisco H.323 Signaling Interface Overview
System
technician
System
operator
Voice/
signaling
Callers
OL-4806-01 Rev. A14