CallQualityWarning enum

Call quality warnings raised by the Twilio Voice SDK during an active call.

Warnings are raised when a metric crosses a threshold and cleared when it recovers, so they describe sustained conditions rather than instantaneous samples. Thresholds are defined by the Twilio SDKs, e.g. RTT > 400ms for 3 of the last 5 samples.

Availability differs by platform - see CallQualityWarning.constantAudioOutputLevel.

Inheritance

• Object
• Enum
• CallQualityWarning

Available extensions

• EnumName

Values

highRtt → const CallQualityWarning

Round Trip Time is high (Twilio: RTT > 400ms for 3 of the last 5 samples).

highJitter → const CallQualityWarning

Jitter is high (Twilio: jitter > 30ms for 3 of the last 5 samples).

highPacketLoss → const CallQualityWarning

A high fraction of packets is being lost (Twilio: average packet loss > 3% over 7 samples).

lowMos → const CallQualityWarning

Mean Opinion Score is low (Twilio: MOS < 3.5 for 3 of the last 5 samples).

constantAudioInputLevel → const CallQualityWarning

The audio input level has been effectively constant, which usually means the microphone is not picking anything up.

constantAudioOutputLevel → const CallQualityWarning

The audio output level has been effectively constant.

Android only - the iOS and JS (web/macOS) SDKs do not raise this warning.

unknown → const CallQualityWarning

A warning reported by the SDK that this plugin version does not recognise.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

index → int

A numeric identifier for the enumerated value.

no setter, inherited

name → String

Available on Enum, provided by the EnumName extension

The name of the enum value.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

wireName → String

The wire name used by the plugin's event protocol. Matches the Twilio JS SDK's warning names, which the native platforms normalise onto.

no setter

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

fromName(String name) → CallQualityWarning

Parses the wire name used by the plugin's event protocol.

parseAll(String csv) → Set<CallQualityWarning>

Parses a comma-separated list of wire names, ignoring empty entries.

Constants

values → const List<CallQualityWarning>

A constant List of the values in this enum, in order of their declaration.