Taken from here: http://www.aussievoip.com.au/wiki-GXP2000-Bug2
Be on a call
  * Push a LINE button that isn't in use (this puts the call on hold)
  * Dial the extension you wish to transfer to
  * Speak
  * Push TRNF
Make sure you have the latest firmware as well, as it gives some
informational messages that are helpful when transferring calls.
On Mon, 2005-06-27 at 18:31 +0200, Markus Monka wrote:> While using Blindtransfer #Extension
> everything works fine.
> 
> But how do i activate announced transfer
> with an Grandstream GPX2000 ?
> 
> Greets
> Markus
> 
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