Not that I am aware of, sorry. The only other way I can think of achieving your objectives is to use WiFi handsets, however, we stopped providing them as we couldn't find any that were reliable enough. Sorry.

Thanks Nick. Is there another Dect standard that will allow for more than three
simultaneous calls?

Tom

The Snom M3 supports multiple registrations and has a repeater too. Bear in mind that the DECT/GAP standard only allows up to 8 handsets to be attached and only 3 talking at the same time, so this may not be the best solution for you.

Can anyone recommend a mutiline DECT base station? This app is for low income residential apartments buildings
using SIP trunking. Need to be able to use cheap handsets. Thanks.