Dialogic Voice Cards - Diva LineTest: The call can be established, but in-band tone test failed

Dialogic Voice Cards - Diva LineTest: The call can be established, but in-band tone test failed

Table of Contents

Issue Description

When using the Dialogic Diva  LineTest utility to make an outbound call, the call may fail with the result “The call can be established, but in-band tone test failed”

Issue Cause

This result is not caused by a defect either on the Diva side or at the called entity. 

Most likely the Phone/Loop Line Test feature was used to call a fax end point. This appears in the Diva diagnostic trace as a ‘CONNECT’ followed by an immediate ‘DISCONNECT’.

Resolution

To call fax enabled end points, use the tab 'Fax' in Diva LineTest

Software

Dialogic Diva System Release versions 8.5.x

Hardware

Dialogic Diva Media Boards