Can I Use a Softphone with TrustCall PBX in the UK?

[trustcallpbx]

I'm searching for a business phone solution that allows employees to work remotely. Does TrustCall PBX support softphone applications for making and receiving calls from anywhere? I would also like information about its PBX and PABX features, call forwarding options, and the availability of a local UK phone number. Any suggestions from existing users would be helpful.