Welltech LP-201 Mar-11-2005 - Manual (Page 54)

SIP SIP-Phone Administration Guide
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16. [tos] command
TOS/DiffServ (DS) priority function can discriminate the Differentiated Service Code
Point (DSCP) of the DS field in the IP packet header, and map each Code Point to a
corresponding egress traffic priority. As per the definition in RFC2474, the DS field is
Type-of-Service (TOS) octet in IPv4. The recommended DiffServ Code Point is defined
in RFC2597 to classify the traffic into different service classes. The mapping of Code
Point value of DS-field to egress traffic priorities is shown as follows.
1. High priority with DS-field.
Expected Forwarding (EF) 101110 ====> 46 (Decimal System)
Assured Forwarding (AF) 001010 ====> 10 (Decimal System)
010010 ====> 18 (Decimal System)
011010 ====> 26 (Decimal System)
100010 ====> 34 (Decimal System)
2. Low Priority with DS-field:
Assured Forwarding (AF) 001100 ====> 12 (Decimal System)
010100 ====> 20 (Decimal System)
011100 ====> 28 (Decimal System)
100100 ====> 36 (Decimal System)
001110 ====> 14 (Decimal System)
010110 ====> 22 (Decimal System)