Alcatel Unleashed

hello I am new and beginner in OXE
we have a pabx 4400 R10.1-j2.501-23-x2-c7s2
here is my little problem and I know that it is small since this site is extraordinary, so I come from a country called Gabon The Documentation is in English and I only speak French
the scenario is as follows
I have a post A and a post B I would simply like that when you call on post B, post A can intercept the call I am told to create a group or an MLA so I would like if possible to have the stages of creation, the phones are 4029 thank you in advance

HI,

you need to programm keys on the post A phone to set a supervision on post B.

create two "multiline" keys, insert the own phone number (post A number)
create a "set supervison" key, insert number you want to supervise (post B number).

users->descend hierarchy->progr. keys