NEW TELEPHONE PORT FUNCTIONS
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This firmware release for the IX67 comes with US call progress tones and the following extended telephone functions for the FXS port:

In the Advanced Telephone Port GUI you can enable/disable:

You can just use flash hook to invoke most functions, but get much better flexibility by using the #n commands (which works independed of how you reached a two-calls state).

3-way calling:

  1. Place the first call, wait for an answer
  2. Hook-flash, listen for 2nd dialtone
  3. Dial second call, wait for an answer
  4. Hook-flash to bind the calls (R)

Call waiting:

  1. You are on the phone
  2. You hear the call-waiting alert
  3. Hook-flash back and forth between the calls (R)

Call transfer (attended):

  1. You have received an incoming call
  2. Hook-flash, listen for 2nd dialtone
  3. Dial second call, wait for an answer
  4. Hook-flash to transfer the call (R) (disonnecting myself)

IN ADDITION - independently how you got two calls going - you can always use:

These keystrokes are of course much more general and gives you more flexibility. Use either - you don't have to select in advance! 

To do Blind Call transfer, simply:

  1. You have a call
  2. Hook-flash, listen for 2nd dialtone
  3. Dial second call using prefix #90, i.e. #90 (disonnecting myself)