Openhab3 - avmfritz callmonitor Duration of calls only in minutes?

While changing from OH 2.5 to 3.1 M2 I now configured avmfritz binding now. And I saw in Calllist there are only small numbers, so seems only duration in minutes is shown. Is that right? Or a failure of mine not showing in seconds?

Hello JenH,

have you been able to solve your problem in the meantime?

Not really a problem, but unlikely. It still shows minutes

I would also like to display the length of a conversation in minutes. Can you write how you did it?

Because of not all in the FRITZ!Box binding, I used TR064 binding now, reading the call list and from the call list extract it via rules.

Just start with this, if having some problems, you can write me also pm.