i can't work with marp turned off.. basic english, which phone "owns" that number.. if you have 3 digital sets key 0 mcr 1000, each of them forward to their cell phone, which one gets the call.. the one with marp.. (control/ownership). with marp no under params, some strange algrothium, last phone changed times the square of the tn in hex minus the mood of the switch..
john poole
bellsouth business
columbia,sc