User's Manual

Firmware Version 1.0.0.5
UCM6510 IP PBX User Manual
Page 147 of 192
Jitter Buffer Size
Configure the time (in ms) to buffer. This is the jitter buffer size used in
"Fixed" jitter buffer, or used as the initial time for "adaptive" jitter buffer.
The default setting is 100.
Max Jitter Buffer
Configure the maximum time (in ms) to buffer for "Adaptive" jitter buffer
implementation, or used as the jitter buffer size for "Fixed" jitter buffer
implementation. The default setting is 200.
Implementation
Configure the jitter buffer implementation on the sending side of a SIP
channel. The default setting is "Fixed".
 Fixed
The size is always equal to the value of "Max Jitter Buffer".
 Adaptive
The size is adjusted automatically and the maximum value equals to
the value of "Max Jitter Buffer".
INTERNAL OPTIONS/RTP SETTINGS
Table 46: Internal Options/RTP Settings
RTP Start
Configure the RTP port starting number. The default setting is 10000.
RTP End
Configure the RTP port ending address. The default setting is 20000.
Strict RTP
Configure to enable or disable strict RTP protection. If enabled, RTP
packets that do not come from the source of the RTP stream will be
dropped. The default setting is "Disable".
RTP Checksums
Configure to enable or disable RTP Checksums on RTP traffic. The
default setting is "Disable".
INTERNAL OPTIONS/STUN MONITOR
Table 47: Internal Options/STUN Monitor
STUN Server
Configures the IP address or URL of the STUN server to query. If not
specified, STUN is disabled. The default setting is stun.ipvideotalk.com.
Valid format:
[(hostname | IP-address) [':' port]
The default port number is 3478 if not specified.
STUN Refresh
Configure the number of seconds between STUN Refreshes. The
default setting is 30 seconds.