Is it possible to have multiple lines on an Asterisk extension?

Question

Asterisk

Hello. There is an automatic telephone exchange an asterisk. At the moment, it is configured so that when calling a common incoming line, the subscriber presses one or another number in the voice menu, and sends him to the queue. There are 2 internal numbers in the queue, let's say 001 and 002. Strategy costs ringall. Does Aster have the opportunity, if the number 001 is busy when calling (there is already a conversation on it), the call still came to number 001? MB will somehow simply be displayed that another line is ringing. Or if the Aster has an internal number that is busy, is it definitely busy, and calls will not be received? Dialer let's say 3CXPhone, if it plays a role

Answer 1

ringinuse queue parameter