Cisco SPA1112 Provisioning Manual page 92

Voice Parameters
<Max_RTP_ICMP_Err>
<RTCP_Tx_Interval>
<No_UDP_Checksum>
<Stats_In_BYE>
<NSE_Dynamic_Payload>
Provisioning Guide for Cisco SPA100 and SPA200 Series Analog Telephone Adapters
Number of successive ICMP errors allowed when transmitting
RTP packets to the peer before the ATA terminates the call. If
value is set to 0, the ATA ignores the limit on ICMP errors.
Default setting: 0
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 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. The NTP timestamp used in the SR is a snapshot of
the local time for the ATA, not the time reported by an NTP
server. If the ATA 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) on the Information page.
Default setting: 0
Select yes if you want the ATA to calculate the UDP header
checksum for SIP messages. Otherwise, select no.
Default setting: no
Determines whether the ATA includes the P-RTP-Stat header
or response in a BYE message. The header contains the RTP
statistics of the current call. Select yes or no from the drop-
down list.
Default setting: yes
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
ins>,EN=<encoder>,DE=<decoder>.
NSE dynamic payload type. The valid range is 96-127.
Default setting: 100
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