Call log

[MichiK]

Is your feature request related to a problem? Please describe.
A call log in the web interface would be a cool option, in environments like Heaven where a lot of phones are used in parallel, it is hard to find out who called, especially if the call ended up at a rather "dumb" mobile device.

Describe the solution you'd like
A call log in the web that shows timestamps of incoming and outgoing calls, their duration and which device was used. It should be possible to purge the log as needed and sort/filter it to some extent.

Describe alternatives you've considered
Lots and lots and lots of paper and a piece of paper for every call taken.

Additional context
In Heaven, we often have to ask for a number to call back. If we forget this in a stressful situation or the need for a callback only becomes apparent later and one of the cheap Gigasets was used for the call, we are out of luck.