Having some weird issues. 8.1.63 rev with Verizon copper trunks. All 6 trunks are showing many "trunk out of service" errors. Sometimes the client reports extensions ringing with nobody on the other end. I have all CA buttons, no LA. Also, it is a small office and all extensions ring through HG main. They do not use an AA during the day so outside calls cannot route themselves. I know these trunks are at over 20,000 feet from the CO. Impedance mathcing selects 120+820||110mF. Have no idea if that means anything. Any ideas?