Parameter Reference Guide
Polycom, Inc.
70
X_FaxPassThroughSignal
Selects the signaling method to indicate to the peer
to switch to FAX passthrough. Choose from:
•
ReINVITE
•
RFC2833
•
Auto
•
None
ReINVITE
X_EchoServer
Name or IP address of an echo server for SIP ALG
detection.
X_EchoServerPort
Listening of the echo server for SIP ALG detection.
X_EnableRFC2543CallHold
Enables interpretation of call hold indication per
RFC2543.
ITSP RTP Settings Parameter Guide
Parameter
Description
Default Setting
RTP
LocalPortMin
Base of port range for tx/rx RTP with this SP.
16600
LocalPortMax
Top of port range for tx/rx RTP with this SP.
16798
KeepAliveInterval
Interval in seconds between sending keep alive packet on
an RTP channel that is currently in idle (due to call hold for
instance). RTP keepalive is disabled if the value of this
parameter is set to
0
.
0
DSCPMark
Diffserv code for outgoing RTP packets with this SP.
0
RTCP
Enable
Enables RTCP.
No
TxRepeatInterval
RTCP packet transmission interval in milliseconds.
10000
LocalCName
The canonical name to use in RTCP messages. If blank, the
device uses
<userid>@<local_IP_address>
as its
canonical name.
X_RTCPMux
Enables using an rtcp-mux attribute in SDP (send and
receive RTCP on the same port as RTP).
No
ITSP SIP Settings Parameter Guide
Parameter
Description
Default Setting