[Allstar Digital] DMRlink and timers

I have a few questions, one is I see that BM now offers the TAC channels. Which I know are normally PTT activated. For me to contact BM and request them, I believe I would have them up full time and would hear everything. Regardless if I activate them locally. The second question is if I was to peer to someone's Rayfield bridge could the PTT activation time be controlled at the Rayfield bridge? I was offered a connection to a bridge but only a CC connection which I can not do. Thank you N1XBM Apparare Scientor Paratus Communicare Allstar Node # 27086, 41540, 41812, 42086, 42658, 42657 www.radioguysrepeaternetwork.com