Conference call on Panasonic TDE100/200?

Question

ATS

Colleagues!
There was a question to those who own these models of automatic telephone exchange.
Can someone tell me how the conference call works on them. Judging by the characteristics, you can connect from 3 to 8 people per channel, and a total of 30 people. I'm wondering how the connection itself occurs in this case?
One external number is enough to which the right people will call in turn and the secretary will transfer the call to the number where the conference call is. Or the secretary himself will call everyone. Those. how a conference call is organized with external subscribers, and not internal ones.

Answer 1

Recently very much it was necessary to plunge into a question of conferences on Panas. I hope you don't mind if I just post the link here ?
If you have any other questions, ask here, or in a cozy blog. I will try to answer to the best of my ability.