Axis Horn Speaker C3003-E - Starts Speaking On Its Own

During the past 2 years we installed several hundred (!) of the Axis Horn speakers C3003-E and got these days feedback from 3 customers , which claim that the speaker plays the onboard mp3 on it's own without being triggered. Axis said that they heard about the issue before, but have no idea how this happens nor they have a solution.

Does anyone had the same problem ?

 

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**** ** *** **** them ********** ****? 

**** *** ********* **** Avigilon **-*****-********* ***-***-*** (*** some ******** *******).

****, ******** *****'* **** a *** ** **** VAPIX ******** ** *** cameras ** **** ***'* be *** *****.  * have *** **** ******* connected ** *** **** Avigilon ****** *** * have *** *** **** issue. *** *** ***** relays ** ******* **** or **** ***** *** audio *** *** *** client?

**** ******* **** *** reboot *** ********.  ** they **** *** *******?  Is *** ***** ***** being **** *** ** if ******** **** ** Normally ******?

**** *** ******** **** aware. ****** ** ******** :) 

* ***'* *** ** they ** ** ***** reboot. ** ******* ** no ******** ****-*****.
**'** ***** **** * http ******* ****** ** play *** ***** - but *** ****** ** not *** ********* ** control **** ********.

*** ***** ******* *** that **** ******** **** broken. **** ******** ****.

** ** ************/************ ****** causing **** ** **** sounds?

*** ** ****?  **** with ** ************ *** contact, *** **** ** know****** ****?

* ***** **’* ********, but ** ** ** PC ********** ****** ****** 2+2=5, *’* *** ********** hardware *** * **** time.

*** ****** **** *** lottery ***** :)

 

* *****. * **** play. :-)

**** * ***** *** the ******** **** *** Axis **************.
***** ** ******* *** speakers, *** ******* *** not ***** *****.