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Polycom VVX410 - Time Sync

Occasional Visitor

Polycom VVX410 - Time Sync

Hi all,


We're having incorrect time stamps on our phones.  There is no SNTP server configured on the phones and my understanding from the ISP is that if no Time Server is configured on the phones, it will default from option 42 via the DHCP servers issuing the addresses from that given scope.  Is this statement accurate or is it crucial to have an SNTP server configured on each and every phone to receive the accurate time (could be really time consuming due to the amount we have).




Message 1 of 3
Polycom Employee & Community Manager

Re: Polycom VVX410 - Time Sync

Hello Jonny,

It is always useful to include the currently used software version as issues experienced may already be addressed in a newer release.

Please also include if you are using a SIP server or a LYNC server

This also allows yourself and others to check against current software release notes.

The above is also stated in the "Read First: Welcome to the Polycom VoIP Forum"

Therefore the Polycom VoIP FAQ contains this post here:

Question: How can I find out my SIP UC Software Version or the BootROM Version of my Phone?
Resolution: Please check here


Jan 28, 2013 Question: Time and Date flashing or unable to set time correctly

Resolution: Please check => here <=


Have a look at the above to troubleshoot if the Phone is getting any SNTP / Time Server


Best Regards


Steffen Baier

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 3
Occasional Visitor

Re: Polycom VVX410 - Time Sync

Thanks a lot for the quick response.


UC Software Version
BootROM Software Version


We are using a SIP server.

Message 3 of 3