Happy new year to everyone. I am submitting a technical issue to your wisdom after gailing to solve it on my side. I do maintain a small DMR network for a mid size organization in an african country. I use an anytone 578 as a repeater over cross band, which allows me to cover a significan areas (repeater on a mountain). The network is completely independant and not connected to any DMR network or the internet. It is possible to send SMS to the different devices of the network in simplex mode, but it never works over the repeater channel. Does anyone have an hypothesis about the cause and a possible way to solve it?