2 analogue Ext# ring at the same time

[amalpbx12]

HI DEAR,
Today I coming 2 u with this command which I did not understand properly.I guess they call it MDN command,and is it possible 2 work with BC10.
The command is,

KSMDIIR=1000,KEY=23,MDN=1234,CALALT=1;

In fact,I have 2 EXT# 3307,3292 the first one is faulty since first set up for PBX,so what I need is that when anybody calls 3307,the 3292 rings as well,
Thanks in advance 4 your patience.

To ALREI or not to ALREI,this is the command

 

[drewMk2]

change the CALALT to a 0.
you will have the same function but the the key will flash
not ring.