Do I have to restart all the CUCM subscribers after changing NTP setting on CUCM Publisher?

[yuweifeng]

According to Cisco info, after changing NTP setting on Call Manager Publisher, all the subscribers have to be restarted.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/cucos/8_0_2/cucos/iptpch4.html#wp1053371

Is it necessary to restart those servers?  Since the rest of the nodes in the cluster are sync with Publisher, why do we have to restart all of them?

CUCM verson 8.0.3

Thanks in advance!

[Leonardo Santana]

Like the doc mentions:

Note After  deleting, modifying, or adding the NTP server, you must restart all  other nodes in the cluster for the changes to take affect.

Regards

Leonardo Santana