busy on 2nd internal call

Joined: Mon 18 of Jan, 2010

busy on 2nd internal call

Posted:Mon 18 of Jan, 2010 (11:13 UTC)
Hi all,
i'm a new registered user using asterisk ver 1.4.22.
This is my problem: i have an extension number 14 beloning to a queue.
When the extension 14 (grandstream GXP2000) is already busy:
1) I need that for external incoming call, the extension recieve the
call waiting signal/tone, and on phone screen appears the second call
2) whereas for another internal incoming call, the extension appear busy.

Is it possible? Could someone let me know the right way to do that?

I hope to be clear
Any help/comment are really appreciate

thanks a lot in advance