Sometimes you just can’t see the wood for the trees… Dialing works now, thank you very much!!
However, I don’t seem to be able to find how to answer a call or hang up. When remote controlling a phone, is there a standard ASCII character you usually put to hang up?
BTW, the channel 1 is mentioned in the attached document:
According to the description of the DIAL command the Group is Group no. 17(R). So I looked in the Groups & Channels Table and looked for Group R (Receive). In the column for Converge 880T it says the channel is 1.