Why register multiple lines on same phone to same extension?

[sorvani (Jared Busch)]

@tonyg

all,
I am doing this on my installs now. If I am doing something wrong or not using best practice, i would like to know.
The reason i have the phones configured for 2 accounts to the same extension is because when I do that, the user can be on the phone, get a second incoming call and either conference it in or switch to it if it is more important.
When I just have one account to one extension, the second call goes to voicemail.

so, is this wrong? or is there a better way?

Yes, you are doing it all wrong.

In the phone:
You program 1 account per extension only.
You program multiple Line buttons to account 1.

In FreePBX
You enable call waiting

This gives you everything you just said you needed.

Here is my phone. Line 2 and Line 4 are two completely separate PBX systems from Line 1.
If I get a call on the Line 1 extension, DSS key 14 lights up with it.
If I get a call on the Line 1 extension while already on a call, DSS key 15 lights up with it.
I can conference, put on hold, transfer, etc.
All from a single account registration.
This is the “normal” way to do it.