hi, there.

We have a remote site which has around 10 isolated tiny buildings, one of them has SM optical fiber back to backbone 5km away.

there is NO any physical structure to inter-connect those tiny building together, no copper, no optical fibre whatsoever, and each building would require just <5 IP & Voice connections, so what would be the cost effective and technology-proof solution? thanks.

our last resort is to lay optical fiber which would be very expensive.