VoIP is extremely bandwidth and delay-sensitive. QoS is a major issue in VoIP implementations, regarding how to guarantee that packet traffic is not delayed or dropped due to interference from other lower priority traffic. VoIP can guarantee high-quality QoS only if the voice and the SIP packets are given priority over other kinds of network traffic.
Flyingvoice phones support SIP QoS and RTP QoS.
SIP QoS
The SIP protocol is used to create, modify, and terminate two or more calls. To ensure sound voice quality, configure SIP data packets sent by the phone to have a higher transmission priority
RTP QoS
For RTP traffic transmission, there should be no discard or delay. Otherwise, calls are affected. You can set RTP QOS to ensure that RTP traffic is transmitted with a high priority.
The following table lists the parameters you can use to configure QoS.
| Parameter | DBID_SIP_TOS |
|---|---|
| Description | It configures the DSCP (Differentiated Services Code Point) for SIP packets. The default DSCP value for SIP packets is 26 (Assured Forwarding). |
| Permitted Values | Integer from 0 to 63 |
| Default | 46 |
| Web UI | FXS > VoIP QoS > QoS Settings > Layer 3 QoS > SIP QoS(0-63) |
| Parameter | DBID_RTP_TOS |
|---|---|
| Description | It configures the DSCP (Differentiated Services Code Point) for voice packets. The default DSCP value for RTP packets is 46 (Expedited Forwarding). |
| Permitted Values | Integer from 0 to 63 |
| Default | 46 |
| Web UI | FXS > VoIP QoS > QoS Settings > Layer 3 QoS > RTP QoS(0-63) |
Last editor：admin Update time：2024-01-03 16:20
