The two active calls are merged into a 
conference call. 
Mute conference participants 
  Do one of the following: 
➢  To mute all participants, select the 
conference name and press Mute All. 
➢  To mute an individual, select the 
participant and press Mute. 
Remove a participant 
  Select a participant, press Remove, and 
confirm that you want to remove the 
participant from the conference. 
Enter Text and Special 
Characters 
You can use the Poly Trio 8300 system’s keypad 
to enter information into text fields. 
1  Highlight a text field. 
2  Using the 2 – 9 keys, enter the needed 
alphanumeric characters. 
Press Mode to change the capitalization 
format of the letters or to enter only numerals. 
3  Using the 1, 0, *, and # keys, enter any 
special characters. 
Managing Contacts 
You can view and add contacts to the Poly Trio 
8300 system’s contact directory. 
View the contact directory 
  Go to Contacts > Contact Directory 
Add a contact to the contact directory 
1  In the contact directory, press Add. 
2  Enter the contact’s information and press 
Save. 
Add a Favorite 
1  In the contact directory, select a contact and 
press Edit. 
2  Scroll to Favorite Index and enter the index 
position.  
Note: The next available index populates. 
3  Press Save. 
Mute the Microphone 
  Press the Mute   button. 
The LEDs around the central speaker 
illuminate. 
Adjust the Volume 
  Press the Volume Up + or Volume Down –
buttons. 
Pair and Connect a Bluetooth 
Device 
If you have a Bluetooth-enabled device, you can 
pair and connect it to the Poly Trio 8300 system. 
Pair a Bluetooth device 
1  On your device, go to your Bluetooth settings 
and search for new devices. 
2  Select the Poly Trio 8300 system’s name 
from the list of available devices. 
3  Confirm the pairing request on your device 
and the Poly Trio system. 
Connect a paired Bluetooth device 
  On your device, go to your Bluetooth settings 
and select the Poly Trio 8300 system’s name 
from the list of paired devices. 
Using Bluetooth 
If your device is connected to the Poly Trio 8300 
system using Bluetooth, you can place a call on 
your mobile phone and use the system as the 
speakerphone for the call. 
Place a call over Bluetooth 
  On your device, place a call. 
The system acts as the speakerphone. 
Set the Poly Trio 8300 as the audio source 
You can manually set the Poly Trio 8300 system 
as the audio source for a phone call on most 
devices. 
  On the call screen, select the Poly Trio 8300 
system as your audio source.