Linksys RTP300 User Guide - Page 106

SDP Payload Types

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SIP page RTCP Tx Interval No UDP Checksum Stats In BYE Interval for sending out RTCP sender reports on an active connection. It can range from 0 to 255 seconds. During an active connection, the ATA device can be programmed to send out compound RTCP packet on the connection. Each compound RTP packet except the last one contains a SR (Sender Report) and a SDES.(Source Description). The last RTCP packet contains an additional BYE packet. Each SR except the last one contains exactly 1 RR (Receiver Report); the last SR carries no RR. The SDES contains CNAME, NAME, and TOOL identifiers. The CNAME is set to @, NAME is set to (or Anonymous if user blocks caller ID), and TOOL is set to the Vendor/Hardware-platform-software-version (such as Linksys/ATA device-1.0.31(b)). The NTP timestamp used in the SR is a snapshot of the ATA device's local time, not the time reported by an NTP server. If the ATA device receives a RR from the peer, it attempts to compute the round trip delay and show it as the value (ms) in the Info section of ATA device web page. The default is 0. Select yes if you want the ATA device to calculate the UDP header checksum for SIP messages. Otherwise, select no. The default is no. Determines whether the ATA device includes the P-RTP-Stat header or response to a BYE message. The header contains the RTP statistics of the current call. Select yes or no from the drop-down menu. The format of the PRTP-Stat header is: P-RTP-State: PS=,OS=,PR=,OR=,PL=,JI=,LA=,DU=,EN=,DE=. The default is no. Voice tab > SIP page > SDP Payload Types section Field NSE Dynamic Payload AVT Dynamic Payload INFOREQ Dynamic Payload G726r16 Dynamic Payload G726r24 Dynamic Payload G726r40 Dynamic Payload G729b Dynamic Payload Description NSE dynamic payload type. The valid range is 96-127. The default is 100. AVT dynamic payload type. The valid range is 96-127. The default is 101. INFOREQ dynamic payload type. There is no default. G.726-16 dynamic payload type. The valid range is 96-127. The default is 98. G.726-24 dynamic payload type. The valid range is 96-127. The default is 97. G.726-40 dynamic payload type. The valid range is 96-127. The default is 96. G.729b dynamic payload type. The valid range is 96-127. The default is 99. Linksys ATA Administration Guide 106

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Linksys ATA Administration Guide
106
SIP page
Voice tab > SIP page >
SDP Payload Types section
RTCP Tx Interval
Interval for sending out RTCP sender reports on an active connection. It can
range from 0 to 255 seconds. During an active connection, the ATA device
can be programmed to send out compound RTCP packet on the connection.
Each compound RTP packet except the last one contains a SR (Sender
Report) and a SDES.(Source Description). The last RTCP packet contains an
additional BYE packet. Each SR except the last one contains exactly 1 RR
(Receiver Report); the last SR carries no RR. The SDES contains CNAME,
NAME, and TOOL identifiers. The CNAME is set to <User ID>@<Proxy>, NAME
is set to <Display Name> (or Anonymous if user blocks caller ID), and TOOL is
set to the Vendor/Hardware-platform-software-version (such as Linksys/ATA
device-1.0.31(b)). The NTP timestamp used in the SR is a snapshot of the ATA
device’s local time, not the time reported by an NTP server. If the ATA device
receives a RR from the peer, it attempts to compute the round trip delay and
show it as the <Call Round Trip Delay> value (ms) in the Info section of ATA
device web page.
The default is
0
.
No UDP Checksum
Select yes if you want the ATA device to calculate the UDP header checksum
for SIP messages. Otherwise, select no.
The default is
no
.
Stats In BYE
Determines whether the ATA device includes the P-RTP-Stat header or
response to a BYE message. The header contains the RTP statistics of the
current call. Select yes or
no from the drop-down menu. The format of the P-
RTP-Stat header is:
P-RTP-State: PS=<packets sent>,OS=<octets sent>,PR=<packets
received>,OR=<octets received>,PL=<packets lost>,JI=<jitter in
ms>,LA=<delay in ms>,DU=<call duration in
s>,EN=<encoder>,DE=<decoder>.
The default is
no
.
Field
Description
NSE Dynamic Payload
NSE dynamic payload type. The valid range is 96-127.
The default is
100
.
AVT Dynamic Payload
AVT dynamic payload type. The valid range is 96-127.
The default is
101
.
INFOREQ Dynamic
Payload
INFOREQ dynamic payload type.
There is no default.
G726r16 Dynamic
Payload
G.726-16 dynamic payload type. The valid range is 96-127.
The default is
98
.
G726r24 Dynamic
Payload
G.726-24 dynamic payload type. The valid range is 96-127.
The default is
97
.
G726r40 Dynamic
Payload
G.726-40 dynamic payload type. The valid range is 96-127.
The default is
96
.
G729b Dynamic
Payload
G.729b dynamic payload type. The valid range is 96-127.
The default is
99
.