ExtraHop named a Leader in the 2025 Forrester Wave™: Network Analysis And Visibility Solutions

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DETECTION OVERVIEW

Call Does Not Exist Error

Category

Service Degradation
Next in Service Degradation: Delayed Email Data Transfer

Description

An application or device sent an excessive number of the SIP 481 status code, which indicates that the device could not match the call request to an existing call or transaction.

Associated content

Announcing The Forrester Wave™: Network Analysis And Visibility Solutions, Q4 2025

Network analysis and visibility solutions remain underrepresented in enterprises. Find out why in this preview of a new Wave report.

Report
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ExtraHop® Named a Leader in First-Ever Gartner® Magic Quadrant™ for Network Detection and Response — ExtraHop

ExtraHop® Named a Leader in First-Ever Gartner® Magic Quadrant™ for Network Detection and Response

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Detections

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Periodic Table of Use Cases

What else can RevealX do for you?

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