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Full Version: W52P - Call Waiting tone
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On my W52P FW: Handset FW: I get a very loud tone when a second call comes in (which gets repeated over and over again until you hangup), although "Call Waiting" and "Call Waiting Tone" is disabled in Phone/Features.

The tone sounds like this:

Update: I found out it is only happening when another external call comes in and Asterisk is sending an additional SIP header

which is used for the desktop phones to play a different ringtone depending on the header. I didn't had this behavior in older firmwares.
Hi Mkeuter,

Do you mean that the problem happens only when you upgrade to V73?

And if a first call come with the Alert-info will handset play this loud tone or it only occurs in second call?
Can you please get a pcap trace and level 6 syslog about this problem?

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