Daylight Saving Time woes with VVX 601

[gvegidy]

Hi,

I have VVX 601 phones running UC software version 6.2.0.3937 RTS80.

They are provisioned with these settings regarding NTP:

        tcpIpApp.sntp.gmtOffset="3600"
        tcpIpApp.sntp.gmtOffsetcityID="54"
        tcpIpApp.sntp.resyncPeriod="900"

The phones are used in Germany, the city ID 54 stands for Berlin according to the manual and I thought this should be enough to correctly configure the time zone.

The phones now switched to DST time, they now have UTC+2. This would be correct for the US, but in Germany DST only begins at the end of March, so the correct time would be UTC+1 now.

What am I doing wrong?

I do not want to manually configure when DST is activated or deactivated (as with "tcpIpApp.sntp.daylightSavings.start" and so on), I want the phones to get this info from their internal timezone database. How can I do that?

Thanks.

Kind regards,

Gerd

[SteffenBaierUK]

Hello @gvegidy ,

Welcome back to the Poly community.

Some or a couple of your old post(s) or reply(s) to them => here <= are still open/pending as you have not marked these as "Accept as a solution" or at least provide some form of feedback or answer.

If they are in this state nobody finding them via a community search will know if an answer or advice provided was useful and has maybe helped you.

Could you therefore kindly go over them and mark or answer as appropriate?

If they are marked as "Accept as a solution" other users can find these easier and it helps them to utilize the community more efficiently.

Please do not simply mark them without any type of feedback.

For your new issue, the FAQ contains:

Mar 15, 2016 Question:Why does a Poly phone show the wrong Daylight Saving Time?

Resolution: Please check this post => here <=

I believe this is the only way to archive this. If this is not desired you can always open a support ticket for an official reply.

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

Best Regards

Steffen Baier

[gvegidy · Accepted solution]

Ok, after a bit of fiddling around and reading between the lines of the admin guide I found the solution:

You have to set

tcpIpApp.sntp.daylightSavings.enable="0"

to have the phone activate DST according to the rules defined by gmtOffsetcityID.

Setting enable=0 to enable something seems counterintuitive to me, especially if the documentation in the admin guide says "Enable or disable Daylight Savings Time rules to the displayed time".

I think what is actually meant is "Enable to override the Daylight Savings Time rules of the timezone set by tcpIpApp.sntp.gmtOffsetcityID with the options set in tcpIpApp.sntp.daylightSavings".

It would be nice if you could forward this as improvement to your documentation department.

Thanks.