Polycom
®
 SoundStation Duo
™
 Conference Phone Quick User Guide. 1725-19064-001 Rev. A  / October, 2011 Edition 3
To switch between an active call and a 
held call:
>> Press 
 or the Confrnc soft key to 
activate a hook flash. The active call is 
held, and the held call becomes the 
active call.
Ending Calls
To end a call, scroll to the active call (if 
applicable), and then press   or the 
End Call soft key.
How you end a call depends on which 
mode your phone is operating in.
To end a held call in SIP mode:
1. Scroll to the held call, if applicable.
2. Press the Resume soft key.
3. Press   or the End Call soft key.
To end a held call in PSTN mode:
1. If you are in a call, press 
 or the 
Confrnc soft key to make the held call 
active, if applicable.
2. Press   or the End Call soft key. 
Muting the Microphones
When you mute the microphones, the 
other parties cannot hear you, but you can 
hear the other parties.
During a call, press  . The indicator 
lights on the phone glow red.
To turn off Mute, press   again. The 
red indicator lights turn off.
Holding and Resuming Calls
How you hold and resume a call depends 
on which mode your phone is operating 
in.
Holding and Resuming Calls in SIP 
Mode
To hold a call:
1. Scroll to the call, if applicable.
2. Press the Hold soft key.
To resume a held call:
1. Scroll to the held call, if applicable.
2. Press the Resume soft key.
The held call becomes active. If you were 
in a call, the call is held.
Holding and Resuming Calls in PSTN 
Mode
To hold a call:
>> Do one of the following:
• Press the Hold soft key.
• If you already have a held call, press 
 or the Confrnc soft key to 
activate a hook flash. The active call 
will be held, and the held call will be 
the active call.
To resume a held call in PSTN mode:
>> Do one of the following:
• Press the Resume soft key.
• If you have an active call, press 
 
or the Confrnc soft key to activate a 
hook flash. The held call becomes the 
active call, and the original call is held.
Transferring Calls
(SIP mode only)
While you are in a call, you can transfer 
the call to another party.
To transfer a call:
1. During a call, press the Trnsfer soft 
key. The active call is held.
2. Place a call to the party to whom you 
want to transfer the call.
3. When you hear the ring-back sound, or 
after you speak with the second party, 
press the Trnsfer soft key.
Forwarding Calls
(SIP mode only)
You can automatically forward all 
incoming calls to another number, or you 
can forward calls as your phone rings.
To automatically enable call forwarding 
for incoming calls:
1. From the idle screen, press the 
Forward soft key.
2. Select the forwarding type you want to 
enable. (Choose Always for all 
incoming calls; No Answer for all 
unanswered incoming calls; or Busy 
for calls that arrive when you are 
already in a call.)
3. Enter a number to forward calls to, and 
then press the Enable soft key.
To disable call forwarding:
1. From the idle screen, press the 
Forward soft key.
2. Select the forwarding type you want to 
disable, and then press the Disable 
soft key.
To forward a call as your phone rings:
1. While your phone rings, press the 
Forward soft key.
2. Enter the number to forward the 
incoming call to.
3. Press the Forward soft key.
Using Do Not Disturb
(SIP mode only)
You can prevent your phone from ringing. 
When Do Not Disturb is enabled, you will 
not have the option to answer calls. The 
calls will display in your Missed Calls list.
To enable or disable Do Not Disturb:
1. Press  , and then select Features.
2. If Do Not Disturb is not highlighted, 
scroll to it.
3. To toggle Do Not Disturb on or off, 
press .
When you enable Do Not Disturb, a 
flashing icon,  , and the text ‘(X) Do Not 
Disturb,’ display on the screen.
Setting Up Conference Calls
The number of people you can add to a 
conference call depends on your phone 
environment. If your phone is in SIP 
mode, you can add two people. If your 
phone is in PSTN mode, you may be able 
to add more than two people.
To set up a conference:
1. Call the first party.
2. After the first party answers, press 
 or the Confrnc soft key. The call 
is held.
3. Call the second party.
4. When the second party answers, press 
the Cnfrnc soft key to join all parties in 
the conference. ‘Active Conference’ 
displays on the screen.
After you set up a conference, you can do 
the following:
• To place the conference on hold, press 
the Hold soft key. To resume the call, 
press the Resume soft key.
• To end the conference, and keep the 
other participants connected, press the 
End Call soft key.
• (SIP mode only.) To end the 
conference and place the other two 
participants on hold, press the 
Split soft key. 
If you have an active call and a call on 
hold, you can create a conference by 
pressing the Join soft key.