[Asterisk-Users] Double Call Progress tones

[Simone Cittadini]

Ron Wellsted ha scritto:

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> This is slowly driving me nuts!
>
> I have several Cisco 7960s with SIP 8.2/7.5 fw connecting to Asterisk 
> 1.2.5 driving a TE110P on a BT EuroISDN PRI line.  On all outgoing calls
> I get a double ring tone (UK style + US style).  I also have a DECT 
> phone on a Sipura SPA-3000 configured with UK tones.  This gives me a 
> double ring of UK + UK, so this suggests the call progress tones are 
> being generated by the SIP device.
>
> As a result I have edited sip.conf to set "progressinband=never" but 
> this has made no difference (even after a total restart).
>
> Previously I was running 1.0.7 without this problem, I upgraded to fix 
> a problem with Monitor (the call stopped monitoring when transfered, 
> 1.2.5 has fixed this).
>
> Does any one have any suggestions?
>
Configure the ringing frequencies on the sip devices so that is 
something not udible by human hears (we did that as a quick fix before 
discovering progressinband some time ago, worked for linksys pap)