Allstarlink can do ..

Allstar can have any number of repeaters linked together and any received signal on one repeater is repeated on all the other repeaters. It’s also a complete repeater controller or you can connect it to a port of an existing controller. You can also use it to build simplex nodes, remote bases and conference bridges. With the proper hardware it can also be a voter/simulcast repeater system.

https://community.allstarlink.org/t/two-remote-nodes-used-to-link-two-repeaters/9116/6