repeating ring tone - how?

[wuesten_fuchs]

Hi, I really like it that the phones ring only once on incoming calls. I always set other phones like this, if possible, for myself.

However, I now have a customer, that wants that the phones repeat ringing like other phones usually do. E.g. the phones should repeat ringing until the user picks up the phone (or the call times out).

I have looked through the configuration if the phones can be set like this but did not find anything? Is this correct that the Yealink T4x phones can't do this or did I overlook something?