Polycom SIP 3.1 Administrator's Manual page 211

Attribute
qos.ip.rtp.dscp
qos.ip.rtp.min_delay
qos.ip.rtp.max_throughput
qos.ip.rtp.max_reliability
qos.ip.rtp.min_cost
qos.ip.rtp.precedence
RTP <rtp/>
These parameters apply to RTP packets.
Permitted
Values
0 to 63 or
EF or
any of
AF11,AF12,
AF13,AF21,
AF22,AF23,
AF31,AF32,
AF33,AF41,
AF42,AF43
0, 1
0, 1
0, 1
0, 1
0-7
Default Interpretation
Null This parameter allows the DSCP of
packets to be specified. If set to a
value, this will override the other
qos.ip.rtp... parameters. Default
of Null which means the other
qos.ip.rtp... parameters will be
used.
1 If set to 1, set min-delay bit in the IP
TOS field of the IP header, or else
don't set it.
1 If set to 1, set max-throughput bit in
the IP TOS field of the IP header, or
else don't set it.
0 If set to 1, set max-reliability bit in
the IP TOS field of the IP header, or
else don't set it.
0 If set to 1, set min-cost bit in the IP
TOS field of the IP header, or else
don't set it.
5 If set to 1, set precedence bits in the
IP TOS field of the IP header, or
else don't set them.
Configuration Files
A - 57