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Configuration: Basic 
Advanced
TCP/IP
IP QoS Traffic Rule fields (continued)
Field | Description | |
Normal Service | Packets matching the rule are treated as normal packets requiring no special treatment along | |
| the path. Normal packets have TOS byte 0 in the IP Header. | |
TOS Marking | Enables you to assign a TOS value to this traffic — No Change, Normal Service, Minimize | |
| monetary cost, Maximize reliability, Maximize throughput, or Minimize delay. The priority bits | |
| in the TOS byte are set to zero upon marking and derived based on priority queues. The | |
| priority bit value for each priority queue is: | |
| • | Voice (EF1): 5 |
| • | High (EF2): 4 |
| • | Medium: 3 |
| • | Low: 1 |
VT2142 Voice Gateway User Guide | 26 |
