Grandstream Networks WP820 Administration Manual page 36

Enable Frame Skipping in Video Decoder
PTT/Multicast Settings
General Settings
Allow
PTT/Paging
When Lock If set to "Yes", the device can initiate PTT/Paging in the lock screen status.
Screen
Status
IGMP Keep-
Specifies how often the phone report IGMP when PTT/ Paging function is turned on. IGMP reporter help to
alive Interval
keep PTT/ Paging receivable in dormant state. The interval may take some effect to standby time.
(s)
PTT/Group Paging
Settings
PTT
multicast Defines PTT multicast address.
address
Port Defines port number for PTT multicast address.
Emergency
PTT/paging Set default volume for PTT/paging when emergency channel/group is used.
volume
PTT Config
PTT Enable or disable PTT.
Default Defines default channel for PTT. When pressing and holding the PTT button, PTT will be initiated using the
Channel default channel.
Priority Defines priority channel for PTT. PTT received on priority channel will take precedence over active PTT on
Channel normal channel.
● Add black margin proportionally
If set to "Original proportion", the phone displays video in its
original proportion. If the video display proportion is
different from the one of the phones, the phone will stretch
or compress video to display it. If set to "Cut proportionally",
the phone will cut video to meet its own display proportion. If
set to "Add black margin proportionally", the phone will
display video in its original proportion. If it still exists spare
space, the phone will add black edge on it.
Enables the phone system for frame skipping in video
decoder. If it is enabled, the video decoder will skip the P
frame and start decoding from the next I frame. Enabling this
option will help reduce flickering in the video when the
bandwidth is limited in the network environment.
The default setting is "Yes".
Table 20: Video Settings