Customer picked a Toshiba CTX 100 & wants me to install it. Low budget, min requirements. 4 Lines w Caller ID , 6 phones.I'm programming system by button & not by winAdmin or emanager. In reading threads & trying things , I was able to delete the extensions (in order to clear existing names)& re-creating them except for ext 200 Guess it can't be deleted. ( so I'll install from 201).

Line 1 has a number programmed from previous install. & in section 300 Trunk Name , states you can only change from winadmin.
1- If I do a Trunk delete (Program # 301) then re-add it will it be labelled as "Line 1"
2- Where do I disable ringing of lines for certain extensions?
3- When I do a Redial feature from the button , it only sends out 7 digits. What Program # is it to change the digit lengths?