EMA Dashboard KPI Dictionary

1. Integrity & Call Health

1.1 KPIs

1.2 Calls per Second

KPI	Details
Peak Calls Per Seconds	Highest number of call attempts recorded in a single second.
Average Calls Per Second	Average number of successfully connected calls per second

1.3 Attempt Violation

KPI	Details
Acceptable	Fewer than 10 failed attempts to unique destination numbers. Considered normal behavior.
Low Risk	11–20 failed attempts to unique destination numbers. Slightly abnormal pattern.
Moderate	21–30 failed attempts to unique destination numbers. Potential suspicious activity.
High	31–40 failed attempts to unique destination numbers. High risk behavior.
Major	41–50 failed attempts to unique destination numbers. Very likely fraud-related activity.
Critical	More than 50 failed attempts to unique destination numbers. Strong indication of fraudulent activity.

1.4 Performance Over Period

KPI	Details
Attempted Calls	Total number of call attempts generated in the system, regardless of whether the call was answered or failed.
Connected Calls	Total number of calls that were successfully answered. A non-null Answer Stamp indicates the call was connected.
Failed Calls	Total number of calls that did not end successfully. Any hangup cause different from 200 is considered a failed call.

Short Call Duration

Less than 6 seconds
KPI	Details
Percentage	Percentage of connected calls lasting less than 6 seconds.
Minutes	Total billed minutes generated by calls shorter than 6 seconds, applying 6-second rounding rules.
Connected	Number of successfully connected calls under 6 seconds.
Non-Connected	Number of failed calls under 6 seconds.

Between 6 and 12 seconds

KPI	Details
Percentage	Percentage of connected calls lasting between 6 and 12 seconds.
Minutes	Total billed minutes for calls between 6 and 12 seconds, applying billing increments.
Connected	Number of successfully connected calls between 6 and 12 seconds.
Non-Connected	Number of failed calls between 6 and 12 seconds.

Between 12 and 24 seconds.
KPI	Details
Percentage	Percentage of connected calls lasting between 12 and 24 seconds.
Minutes	Total billed minutes for calls between 12 and 24 seconds after rounding to billing increments.
Connected	Number of connected calls between 12 and 24 billed seconds.
Non-Connected	Number of failed calls between 12 and 24 billed seconds.

1.6 ASR (%) Heatmap

KPI	Description
ASR	Percentage distribution of successfully connected calls (Hangup Cause = 200) relative to the overall total within the selected dataset. Used for heatmap visualization to compare performance across dimensions such as carrier, destination, time period, or route.

2.DID Efectiveness

2.1 Outbound DIDs

KPI	Description
T+ Validated Numbers	Total number of unique DID numbers that generated a successful SIP response (200 OK) and required no further action (Ema Disposition = “No Action”). These are considered validated and operational numbers.
Unvalidated Numbers	Total number of unique originating addresses that generated a successful SIP response (200 OK) but are not classified as validated DIDs. Represents numbers that have activity but are not confirmed as validated Teams+ DIDs.

2.2 Destination DID

KPI	Description
Calls Connected	Total number of successfully connected calls (SIP 200 OK) where no blocking or special action was applied (Ema Disposition = “No Action”). Represents normal completed calls to destination DIDs.
Unique Number	Total number of unique destination DID numbers that received successfully connected calls without any action or blocking applied.

KPI	Description
Calls Connected	Total number of calls that received SIP 200 OK but were intercepted by the iOS 26 call screening feature (automated call screening message).
Unique Number	Number of unique destination DIDs where calls were answered but redirected to the iOS 26 automated screening message.

KPI	Description
Calls Connected	Total number of calls that received SIP 200 OK but were identified as voicemail by the detection system. These calls did not reach a live user.
Unique Number	Total number of unique destination DIDs where calls were answered but routed to voicemail instead of a live person.

2.3 Early Media

KPI	Description
Attempted	Total number of call attempts rejected with SIP 403 Forbidden. Indicates the carrier understood the request but refused it, commonly due to blocking rules, permissions, or configuration issues.
Unique Destination Number	Number of unique destination numbers that returned a 403 Forbidden response.

KPI	Description
Attempted	Total number of calls rejected due to timeout (SIP 408). Indicates no response was received within the expected time window.
Unique Destination Number	Number of unique destination numbers that experienced timeout errors.

KPI	Description
Attempted	Total number of calls rejected because the destination line was busy (SIP 486). The endpoint is actively engaged on another call.
Unique Destination Number	Number of unique destination numbers that returned a busy response.

KPI	Description
Attempted	Total number of calls rejected due to service unavailability (SIP 503). Usually related to carrier overload, maintenance, or temporary infrastructure issues.
Unique Destination Number	Number of unique destination numbers affected by service unavailability errors.

KPI	Description
Attempted	Total number of calls rejected with 404 Not Found. Indicates the destination number or endpoint does not exist or is incorrectly formatted.
Unique Destination Number	Number of unique destination numbers that returned a 404 error.

KPI	Description
Attempted	Total number of calls rejected due to gateway timeout (SIP 504). Indicates a routing or upstream server response issue.
Unique Destination Number	Number of unique destination numbers affected by gateway timeout errors.

KPI	Description
Attempted	Total number of calls rejected because the endpoint was temporarily unavailable (SIP 480). The destination may be offline, out of coverage, or powered off.
Unique Destination Number	Number of unique destination numbers that returned an unavailable response.

KPI	Description
Attempted	Total number of calls terminated with SIP 487. Indicates the call was cancelled before being answered, often because the caller hung up.
Unique Destination Number	Number of unique destination numbers involved in cancelled call attempts.

2.4 Early Media Ranking

KPI	Description
Attempts	Displays the number of Early Media attempts for the destination number ranked in position 1. This metric highlights the top-ranked number based on Early Media activity within the selected time range.
Unique Destination Number	Counts the unique destination number that holds the top ranking (Rank = 1) based on Early Media occurrences. Used to identify which number generated the highest Early Media activity.

2.5 Connected & Non Connected

KPI	Description
Connected Calls	Total number of successfully connected calls. Hangup Cause 200 indicates the call was answered.
Non-Connected Calls	Total number of calls that were not successfully connected. Includes all failed, rejected, cancelled, or unreachable attempts.

2.6 Connected & Non Connected Numbers

KPI	Description
Top Connected Numbers	Ranks destination numbers based on the number of successfully connected calls. Identifies the top-performing numbers by connection volume.
Top Non-Connected Numbers	Ranks destination numbers based on the number of failed or non-connected calls. Helps identify problematic or low-performance destinations.
SIP Error Code Destination Number	Total number of call attempts grouped by SIP error code and destination number. Used to analyze attempt distribution and identify recurring SIP error patterns per destination.