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Voice Insights Call Summary

The Voice Insights Call Summary provides a glimpse into call metadata, connection parameters, and quality indicators in a single cumulative view for every call placed on the Twilio platform. Call summaries are typically available within a few minutes after the call ends, though it may take up to an hour for all the details to be aggregated and displayed.

Voice Insights Call Summary

The call summary is divided into different sections to isolate details based on the call flow, direction, and the type(s) of media edges present on the call. The sections are:

From/To sections

The From section contains metadata about the calling party. The To section contains metadata about the called party. Different metadata are availble depending on the direction and type of call; e.g. an Elastic SIP Trunking origination call will have different metadata compared with an iOS Voice SDK call.

プロパティ 概要
From The caller ID of the calling party.
To The called party.
Connection Describes the method by which the call was delivered to/from Twilio; e.g. twilio_sdk, sip_trunk, landline, etc.

User Agent

SIP Interface/SIP Trunking only: endpoint device type; e.g. PBX version, SIP phone model, etc.
SIP Call ID SIP Interface/SIP Trunking only: SIP call ID for the call between Twilio & your SIP infrastructure.
シグナリングIP The IP address for Twilio's signaling gateway. Not available for calls to/from the PSTN.
メディアIP The IP address for Twilio's media gateway. Not available for calls to/from the PSTN.
region The AWS region where Twilio's signaling and media gateway reside.
Country The country based on the IP address or E.164 country code.
OperatingSystem Voice SDK only: the OS reported by the application.
Engine JS Voice SDK only: the engine reported by the application.
Browser JS Voice SDK only: the browser reported by the application.
SDK Version Voice SDK only: Twilio Voice SDK version number.
Selected Region Voice SDK only: Twilio Region selected by the application; default selection is GLL.
Client Name Voice SDK only: registered username for call delivery.
Client IP Address Voice SDK only: IP address reported by the application.
Client Location Voice SDK only: location derived from IP address reported by the application.

Properties section

プロパティ 概要
切断側 Which party ended the call as determined by the direction of the SIP BYE received at Twilio's signaling gateway.
Last SIP Response Final SIP reponse code for the dialog.
Twilio RTP Latency Twilio-internal RTP traversal time from ingress to egress; aka the amount of time in milliseconds that media spent in Twilio's voice infrastructure. Average and max values shown.
Post-dial Delay The amount of time between the SIP INVITE and a 18x response; how long it took for the calling party to hear ringing.
Call State Call status as defined here.
Silence Detected Boolean. Will be true in the event of a missing RTP stream or total silence from one of the parties.

Metrics section

プロパティ 概要
Codec The RTP profile name of the codec used for the call; e.g. Opus, PCMU, etc.
Packet Loss Detected Boolean. Will be true if cumulative packet loss >5% for non-Voice SDK calls; >1% for 3 out of 5 consecutive samples for Voice SDK calls; if true the percentage of packet loss detected will be shown.
Jitter Detected Boolean. Will be true if more than 1% of the packets are delayed by 200ms we tag high jitter, or if the average jitter is greater than 5ms and max jitter is >30ms for non-Voice SDK calls; max jitter >30ms for 3 out of 5 consecutive samples for Voice SDK calls; if true the average/max jitter will be shown.
Low MOS Voice SDK only: Boolean. Will be true if MOS <3.5 for 3 out of 5 consecutive samples; if true the MOS score will be shown.
High Round Trip Time Voice SDK only: Boolean. Will be true if RTT > 400 ms for 3 out of 5 consecutive samples; if true the average/max round trip time (RTT) will be shown.
ICE Failure Voice SDK only: Boolean. Will be true if the ICE candidate has checked all candidates pairs against one another and has failed to find compatible matches for the components of the connection.
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