Sony IPELA PCS-G70 Operating Instructions Manual page 245

Note
"Resume Call" is not available when the remote party has operated the system to enter
the hold mode during a point-to-point videoconference. Only "Disconnect" is available.
To put a call on hold during a multipoint videoconference
The operations to enter/cancel the hold mode are the same as those for a point-
to-point videoconference.
See "To put a call on hold during a point-to-point videoconference" and "To
cancel the hold mode of a point-to-point videoconference" above.
The following differences regarding the operation and display are observed
during a multipoint videoconference:
• When the terminal in use is the main terminal and a call is put on hold, all
the connected terminals enter the hold mode simultaneously and the "On
Hold" display appears on the monitor window of each site. However, if a
multipoint videoconference is conducted and there are connected terminals
with line types other than SIP, you cannot put a call on hold from the main
terminal.
When a connected terminal puts a call on hold, the "On Hold" display
appears on their screen only, and calls can no longer be put on hold from the
main terminal. In such a case, you can still receive calls from other terminals.
When all connected terminals put calls on hold, only the picture of this site
is displayed on the monitor screen.
• When the terminal in use is a connected terminal and a call is put on hold,
the "On Hold" display appears on screen. Even if another connected terminal
puts a call on hold, you can still put a call on hold from this terminal. If the
main terminal puts a call on hold, all connected terminals enter hold mode.
In any such case, you cannot dial or receive calls from any terminal when in
hold mode.
• When a multipoint videoconference is conducted in the Voice Activate mode
with the MCU software installed in the local system, and if a connected
terminal being broadcast puts a call on hold, only that terminal enters the
hold mode and the local picture is shown on the other terminals. If a
connected terminal that is not being broadcast puts a call on hold, the
broadcasting continues.
For details on the Split mode and the Voice Activate mode, see "What is
"Broadcast Mode"?" on page 221 of Chapter 8.
Starting a Videoconference Using SIP
245