Multiple users able to (simultaniously) answer incoming calls

Hi Experts, I just need to know if this is even possible...  

When a call comes in, it rings "Line 1" on multiple 79xx phones, or "Line 2", etc.  Let's say a person answers and starts talking to the caller.  As you would expect, "Line 1" turns green on their phone and red on the remaining phones.  Is it possible to have another user hit their red "Line 1" button and be conferenced in, so to speak, much like a (literal) extension on someone's old home phone?

ISR 2921, 15.4(1), CME 7.1
LVL 1
David BlairAsked:
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giltjrCommented:
Some models (maybe all) support 3-way calling, but you can't just pick-up another phone and be magically on the same conversation.

Each phone has its own IP address, which is their unique "phone number", and the calls are made to the IP address of the unique phone.  In your analogy of  "old" home phone, it would be more like your neighbor gets a call to their phone number and you pick up your phone and are part of their conversation.  It doesn't work that way.

Not sure what you meant by "old", since the majority of the world still uses POTS, in fact the majority of business phones are still POTS and PBX.
PhonebuffCommented:
No you can not do want you are asking, unless you set up conference bridges .  

What you are describing is a function of the old Key Systems where a given line was actually bridged to all the phones where as a IP PBX does Point to Point connections.

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