Aastra 53I IP PHONE - RELEASE 2.1 User Manual page 98

Centralized Conferencing (for Sylantro and Broadsoft Servers)
The 53i allows you to create multiple conferences with unlimited participants
(depending on your server limitations) when your Administrator enables Centralized
Conferencing.
If your Administrator does not enable Centralized Conferencing, then the 53i uses
Loca Conferencing by default.
Your Administrator can configure Centralized Conferencing globally on all lines or
on specific lines. Although, for the global setting to work, you must configure the
lines with the applicable phone number.
Reference
For more information on Centralized Conferencing, see
on page 133 or contact your System Administrator.
Using Centralized Conferencing
IP Phone UI
Note: When Centralized Conferencing is enabled on your phone, local confer-
encing (or three-way conferencing) works as indicated in the previous
section,
ference also works as indicated in the previous section,
Active Calls in a Single Conference."
Use the following procedure to create a conference call using centralized
conferencing. Use the following illustration as a reference.
Conference
Key
90 Model 53i IP Phone User Guide
"Using Local Conferencing."
"Centralized Conferencing"
Joining two active calls in a con-
"Joining Two