VoIP QoS - Quality of Service

The VoiceHost broadband network supports QoS and heres how

The VoiceHost broadband network supports QoS levels 1 - 4 and our entire core honours QoS from 3rd Party networks providing the correct markings have been applied and kept thoughout the transmissions.
QoS cannot make a lossy connection non-lossy, nor remove jitter, but if packet-loss and jitter arise from modest congestion or packets being delayed respectively, QoS can help.

TOS (Dec)TOS (Hex)TOS (Bin)TOS Precedence (Bin)TOS Precedence (Dec)TOS Precedence NameTOS Delay flagTOS Throughput flagTOS Reliability flagDSCP (Bin)DSCP (Hex)DSCP (Dec)DSCP/PHB Class
1840xB8101110001015Critical1101011100x2E46EF
         011000 24CS3

CS3 | VoiceHost QoS

The CS (Class-Selector) codepoints above are in the form ‘xxx000′. The first three bits ‘xxx’ are the IP precedence bits for backwards compatibility, while the last 3 bits are set to zero. Each IP precedence value is mapped to a DiffServ value known as Class-Selector codepoints. If a packet is received from a non-DiffServ aware router that used IP precedence markings, the DiffServ router can still understand the encoding as a Class-Selector codepoint.
The DiffServ model also introduced two types of forwarding classes : AF & EF.

EF | VoiceHost QoS
The EF (Expedited Forwarding) traffic is often given strict priority queuing above all other traffic classes. The design aim of EF is to provides a low loss, low latency, low jitter, end-to-end expedited service through the network. These characteristics are suitable for voice, video and other real-time services.

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