3Com CommWorks 5210 - Manual (Page 28)

28 C HAPTER 2: C ONFIGURATION
Component
Configuration The IP Telephony Manager Console window is used to select target
components whenever you are performing configuration, sending commands,
or upgrading components through software download.
Launching the
Configuration Tool
There are two ways to launch the Configuration Tool:
■
From the IP Telephony Manager Console, select a target from the IP
Telephony Manager Console window, and then from the Configuration
menu, select Programmed Settings.
■
From the UNIX command line, type xtcmconf followed by the IP address or
hostname of the target device and the target slots and channels (refer to
Appendix B
Command Line Interface for more details).
Synchronizing
Network Time You must synchronize the system time of each component in the network
accurate tracking of the IP telephony traffic. To achieve system
synchronization, set each Gatekeeper, SIP Proxy Server, and Back-end Server to
Greenwich Mean Time (GMT) and use the Network Time Protocol (NTP) on all
system components.
Setting the Time Zone For each Gatekeeper, SIP Proxy Server, and Back-end Server in the IP telephony
network, set the time zone to GMT.
1 From the Windows desktop, click Start, then Settings, and then click Control
Panel.
2 Double-click Date/Time.
The Date/Time Properties window appears.
3 Click Time Zone.
4 From the drop-down list, select [GMT] Greenwich Mean Time: Dublin,
Edinburgh, Lisbon, London.
5 Click OK.
Recording the NTP IP
Addresses
NTP uses a primary and a secondary NTP time server for system time. You can
use the IP addresses of NTP time servers that are local to your network, or you
can use public NTP time servers. The IP addresses of public NTP time servers are
available on the internet. Use the following procedure to record a primary and
secondary NTP time server address.
Selecting Local NTP Servers
If your local network includes local NTP time servers, record the IP address of
the primary NTP time server and the secondary NTP time server.