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The SPA941 allow multiple lines to simultaneously cause Call Waiting. All four call appearances can ring
at the same time, after one of the Extension Keys is answered, the other three call appearances will go
into the Call Waiting state.
Three Way Conferencing
There are two ways to initiate a three way conference on the SPA941:
• During an active call, if the phone has one or more idle call appearances, press the conf soft key.
This places the active call on hold and selects the next available call appearance for dialing (the dial
tone is heard in the active audio device). Dial the third party, the party to be added to the conference
call. After the third party’s line rings or is answered, presses the conf soft key again to join the two
calls into a conference.
• If the phone has a call is on hold while another call is either ringing or is connected, the confLx soft
key appears. If the phone has only one call on hold, pressing the confLx soft key joins the call on
hold with the active call. If the phone has more than one call on hold, pressing the confLx soft key
places the active call on hold and prompts the user to select the other Line Key to join with the
conference call.
Once the conference starts, the SPA941 plays a special brief tone to all three parties to indicate that a
conference call is in progress. The initiator of the conference call can terminate it at any time by hanging
up. The initiator leave the conference without ending the call by pressing join soft key; this allows the
other two parties to continue the call. This is implemented as a call transfer, which may not work if the
other two parties are hosted by different service providers.
Note: If the extension is configured with an external Conference Bridge URL, then conference is not
limited to three way; it can be as many parties as the conference bridge supports. There are two
restrictions that apply when using an external conference bridge:
1) The conference can only be initiated (by pressing the conf soft key) when the third party has
answered, instead of when the phone is either ringing or answered, and
2) Ringing call cannot be brought into a conference by pressing the confLx soft key; only calls that
are on hold can be brought into the conference with the confLx soft key.
Attended Call Transfer
An attended call transfer allows a user to optionally transfer a call to a third party, after having a
discussion with that third party. There are two ways to perform an attended call transfer:
• During an active call, press the xfer soft key to place the current call on hold and to activate an idle
Line Key. Dialed the transfer target number on the newly activated line. When the target is either
ringing or answered, press the xfer soft key again to complete the transfer.
• While one or more call appearances is on hold, initiate a call on an idle Line Key. While the call is
either ringing or is connected, press the xferLx line key. If only one other call is on hold, the active
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