PLANET VIP-350PT - Manual (Page 103)

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Signal IP ToS
Specify the IP type-of-service (ToS) bits of SIP packets transmitting signals. This setting affects
both TCP and UDP signaling packets.
The IP ToS bits consist eight bits:
7 (MSB) 6 5 4 3 2 1 0(LSB)
Precedence Delay Throughput Reliability Reserved (00)
Where MSB denotes “Most Significant Bit” and LSB denotes “Least Significant Bit”.
1. Bits 5-7 specify the precedence:
• 111 - Network Control
• 110 - Internetwork Control
• 101 - CRITIC/ECP
(RTP default)
• 100 - Flash Override
• 011 - Flash
(RTCP default)
• 010 – Immediate
• 001 – Priority
• 000 - Routine (normal)
2. Bit 4: 0 = Normal Delay, 1 = Low Delay (RTP/RTCP default) .
3. Bit 3: 0 = Normal Throughput, 1 = High Throughput (RTP default).
4. Bit 2: 0 = Normal Reliability, 1 = High Reliability (RTCP default) .
5. Bit 0-1: Reserved for Future Use.
System default is 0xA8 (168 in decimal) for SIP signaling packets. Please enter it in decimal.
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I
P T y p e - o f - S e r v i c e
[ 0 - 2 5 5 ]
1 8 0
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