BC127 Three way call

I am using BC127.
It is difficult to use the three-way call function only with the contents of the manual.
Can I get more information about three-way call ?

Thanks

Hi

Here are the following steps for a Three Wall Call:

  1. Connect BC127 to a smartphone (HFP profile)
  2. Start a call
  3. While the call is active and there is another incoming call, you can use CALL <link_id> TWC <action> command to accept/reject/swap or merge the incoming call.

For detail of CALL command and its TWC option, please refer to Melody user guide.