Configuring Rtp Parameters - Cisco SPA942 - - IP Phone Administration Manual
Spa and wireless ip phone
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Configuring SIP, SPCP, and NAT
Configuring SIP
STEP 1
STEP 2
STEP 3
STEP 4
Cisco SPA and Wireless IP Phone Administration Guide
Configuring RTP Parameters
To configure individual RTP parameters:
Log in to the web administration interface.
Click Admin Login and advanced.
Click the SIP tab.
Under RTP Parameters, configure the following fields:
•
RTP Port Min—Minimum port number for RTP transmission and reception.
<RTP Port Min> and <RTP Port Max> should define a range that contains at
least 10 even number ports (twice the number of lines); for example, 100 –
106. Defaults to 16384.
•
RTP Port Max—Maximum port number for RTP transmission and reception.
<RTP Port Min> and <RTP Port Max> should define a range that contains at
least 10 even number ports (twice the number of lines); for example, 100 –
106. Defaults to 16482.
•
RTP Packet Size—Packet size in seconds, which can range from 0.01 to
0. 1 6. Valid values must be a multiple of 0.01 seconds. Defaults to 0.030.
•
Max RTP ICMP Err—Number of successive ICMP errors allowed when
transmitting RTP packets to the peer before the Cisco IP phone terminates
the call. If the value is set to 0 (the default), the Cisco IP phone ignores the
limit on ICMP errors, disabling the feature.
•
RTCP Tx Interval
active connection. During an active connection, the Cisco IP phone can be
programmed to send out compound RTCP packet on the connection. Each
compound RTP packet except the last one contains a sender report (SR)
and a source description (SDES). The last RTCP packet contains an
additional BYE packet. Each SR except the last one contains exactly 1
receiver report (RR); the last SR carries no RR.
The SDES contains CNAME, NAME, and TOOL identifiers.:
-
CNAME is set to
-
NAME is set to
-
TOOL is set to the Vendor/Hardware-platform-software-version (such as
Cisco/SPA9000-5.2.2(SCb)).
—
Interval for sending out RTCP sender reports on an
User ID@Proxy
Display Name
Anonymous
(or
5
if user blocks caller ID)
97
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