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UC 4.1.1 Time Sync Static IP

Occasional Visitor

UC 4.1.1 Time Sync Static IP

Hi All,


New to the form recently bought some used 560 soundpoint ip phones I upgraded the sip.cfg files with the cfc utility to upgrade to the new config version got the phones provisioned and working except for the time. My old 301 phones and some 650 phones on older boot rooms and sip versions boot fine with static IPs and mainly set sntp ips. With my 560 phones its a different story same with one 650 I upgraded to see if it was a phone issue it wasn't. When I statically assign an ip to my 560 phones I can never get the time to sync with any server.  When I give it a DHCP ip and DHCP NTP ip it will sync with the correct time. I would like to keep my static ip assignments on the phone is there something I'm missing in my config files as to why it's ignoring the ips when I have a static ip.

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Polycom Employee & Community Manager

Re: UC 4.1.1 Time Sync Static IP

Hello RidgwaySchool,

welcome to the Polycom Community.

A couple of things:


  • When upgrading from anything prior to UC Software 4.0.0 and later you really do not need any old configuration. This was more utilized when going from 3.2.x or older to 3.3.x

    You simply follow this guide => here <= on a factory reset phone. Anything else can be programmed afterwards.

  • Higher numbers is not better.
    UC Software 4.1.1 is for LYNC
    UC Software 4..0.11 is for SIP
    Please downgrade to UC Software 4.0.11

  • Test this setup and then post logs from an affected phone. There is a FAQ on time flashing that you can follow

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

The title Poly 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
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