Matrix PRASAR UCS System Manual 1073
Simple Network Time Protocol - SNTP
What’s this?
SNTP is a protocol used to synchronize the clocks to some time reference. PRASAR UCS supports both, SNTP
Client as well as SNTP Server.
SNTP Client
PRASAR UCS has its own Real Time Clock (RTC) to store date and time. When you select the Region, the RTC
parameters are set automatically.
However, the RTC can drift over a long period. So, you may check and reset the RTC values at regular intervals to
correct this drift. You can set the RTC manually (see “Real Time Clock (RTC)”) or synchronize it with any SNTP
Server in the Public Network. To synchronize time with the SNTP Server, PRASAR UCS supports SNTP Client.
SNTP Server
PRASAR UCS supports IP Phones and these phones have SNTP Clients so that they can synchronize their clock
with a SNTP Server.
These SNTP Clients in the phones can synchronize their clock with the SNTP Server on the public network only if
Internet is available in the network. Hence, to overcome this PRASAR UCS also supports an SNTP Server with
which the SNTP Clients can synchronize their time without internet connectivity. The clients can synchronize their
time by configuring the IP address of PRASAR UCS in their SNTP settings as the SNTP Server. Thus PRASAR
UCS acts as Server and will provide GMT time to the clients.
How to Configure
SNTP Client
To use SNTP for synchronizing with the Real Time Clock,
• Login as System Engineer.
• Under Configuration, click Date and Time.
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