09-25-2014, 12:51 AM
On my W52P FW: 25.73.0.20 Handset FW: 26.73.0.10 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: http://www.yourhomenow.com/sound/sit-tone.wav
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.
The tone sounds like this: http://www.yourhomenow.com/sound/sit-tone.wav
Update: I found out it is only happening when another external call comes in and Asterisk is sending an additional SIP header
Code:
SIPAddHeader("Alert-Info:<http://www.notused.com>;info=line2;x-line-id=0")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.