[Asterisk-Users] call waiting beep

[Sean Rodger]

Is there anyway to turn off the call waiting beep in the grandstream and/or
cisco ata186?

I have a dial statement in my extensions.conf that rings 5 phones at the
same time by combining them with the & in the dial statement.
i.e.) exten =>
blah,blah,Dial(SIP/GS1&SIP/GS2&SIP/GS3&SIP/ata186a&SIP/ata186b,25,t)

If one of those lines is being used, then the user gets a really loud call
waiting beep, and on the ata186, also an inband callerid noise (perhaps
changeable on the ata186).

thanks for any info.

Sean Rodger