Cisco SPA 500 Series and Wireless IP Phone Field Reference
SIP Tab
Cisco SPA 500 Series and WIP310 IP Phone Administration Guide
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SDP Payload Types
The configured dynamic payloads are used for outbound calls only where the IP
phone presents the SDP offer. For inbound calls with a SDP offer, the IP phone
follows the caller dynamic payload type assignments.
The IP phone uses the configured codec names in its outbound SDP. The IP phone
ignores the codec names in incoming SDP for standard payload types (0 – 95). For
dynamic payload types, the IP phone identifies the codec by the configured
codec names. Comparison is case-insensitive.
Stats In BYE
Determines whether the IP phone 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>.
Defaults to no.
Parameter
Description
Parameter
Description
AVT Dynamic Payload
AVT dynamic payload type. Ranges from 96-127.
Defaults to 101.
INFOREQ Dynamic Payload
INFOREQ dynamic payload type.
Defaults to blank.
G726r16 Dynamic Payload
G.726-16 dynamic payload type. Ranges from 96-127.
Defaults to 98.
NOTE
Not applicable to Cisco SPA 525G/WIP310.
G726r24 Dynamic Payload
G.726-24 dynamic payload type. Ranges from 96-127.
Defaults to 97.
NOTE
Not applicable to Cisco SPA 525G/WIP310.
