MoH static in UC520

Answered Question
Jan 18th, 2010
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Hi,


I am getting static on UC520 MOH, internal & external calls, IOS version is 12.4(20)T2, just using g711 codec as single site.


Thanks


Hasrat

Correct Answer by Brandon Buffin about 7 years 2 months ago

Sounds like it could be a problem with the connector on the UC520. I would recommend opening a case with TAC to see if they will RMA the unit.


Brandon

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Brandon Buffin Mon, 01/18/2010 - 11:04
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Is MOH being played from a file on the UC520 or an external source? If a file, copy the file off to a computer, play it and see if it has static.


Hope this helps.


Brandon

Hasrat Raja Mon, 01/18/2010 - 11:47
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Hi Brandon,


Thank you for the reply, I am using itouch as an external source, if I switch to flash source it is fine, do I need to use a certain kind of jack with itouch ?


hasrat

Brandon Buffin Mon, 01/18/2010 - 11:51
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No, any 3.5mm connector should work. Have tested the itouch with headphones? Is the audio OK? If this works, try plugging the itouch into external speakers using the same cable that is connecting it to your UC520. Any static? If not, this should rule out the cable. The last variable would be the connector on the UC520. If possible, try plugging another device into this connector and see if the problem remains.


Hope this helps.


Brandon

Hasrat Raja Tue, 01/19/2010 - 08:22
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Brandon,


sound from external speakers is good, changed cable has no effect, as suggested connected another itouch still hear crackling sound.


hasrat

Correct Answer
Brandon Buffin Tue, 01/19/2010 - 08:24
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Sounds like it could be a problem with the connector on the UC520. I would recommend opening a case with TAC to see if they will RMA the unit.


Brandon

Hasrat Raja Tue, 01/19/2010 - 14:28
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I took out itouch from the port and I still heard the crackling sound, then I shut down voice port 0/4/0 and the noise went away, it confirms that it is the voice port. I will move itouch to the fxo port tomorrow and hopefully won't have any noise, will update.


Thanks for all the responses.


hasrat

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