Darko, > ax25 bcport ptcII off > mbox mport ptcII off <--?? OFF? It would appear you are looking at an older HFDD document. There is a more recent one for 2.0f under DOCUMENTS section. PS: I have to stress that the PTC support is rudamentary, and not the most user friendly (depending how you look at things). It still needs work :) Maiko