Very new first of all, current setup 3 POTS lines come into office, no PBX or switch at all each of the 4 phones we have are 3 line phones so from the dmark point we have a 3 line phone cord going to each phone. So no matter which line rings all phones will ring at the same time. My question to you all, can I have this same setup with Asterisk, I’m sure I can, I just need to be pushed into the right direction. I know I need atleast 3 FXO interface cards for the 3 incoming POTS lines. I am just not sure where to go from there, I understand I need FXS cards as well to allow me to connect the standard phones I am currently using, my hang up is how do I make all three lines ring on all 4 phones at once? Do I need 3 FXS cards per standard phone to route each incoming call to each phone? or will one FXS card per phone be fine then I just configure Asterisk some how to route each incoming call to each handset? If someone can point to either a section in the O’Reilly book that covers this i’m not sure what you would call this type of setup? I have read through the Asterisk wiki but still not sure.
Thanks for reading my long rambling post