Planning the CS configuration 342
SmartWare Software Configuration Guide 31 • CS context overview
Figure 48 shows a typical application with a remote office in an enterprise network. The example focuses on the SmartNode in the remote office. There is an ISDN phone, a personal computer, a connection to the public ISDN network, and a connection to the IP backbone. The VoIP protocol used is H.323 with a codec G.711. A call can be routed to the IP backbone and the public ISDN network depending on its prefix and number length.

Figure 48. Remote office in an Enterprise network

An application like that shown in figure 48 would require the following CS configuration:•Since the remote office is connected to the public switched telephone network, the clock-source comes from the corresponding ISDN port. (Described in section “Configuring general CS settings” on page 343).
Node
Node IP
Backbone
PSTN
RemoteOffice
ISDN PhonePC
193.192.37.12
172.16.101.1
Main Office
H.323, Codec G.711
H.323 GW
eth0/0
bri
bri
eth0/1
ContextCS
switch
ContextIP
router
Session
Router
Ethernet interfaces
Call routing
ISDN interfaces
H.323 interface
IP
Backbone PSTN
PC
193.192.37.8
Call Routing