asterisk users - Feb 2005 - Transposed ringing

I don't suppose anyone might know why I hear ringing transposed over 
itself when I place a call out via PRI?

SIP to SIP is fine
SIP to IAX is fine
SIP to PRI is always transposed

I mean sometimes you don't notice it much because it's lined up right, 
but other times you'll hear a really long ring (starts sounding normal, 
then sounds "weird" -- like two rings played at the same time, then 
sound normal) or quick choppy rings.  It seems very much like there is a 
ring from the PRI and another ring from asterisk or the Sipura phones & 
ATAs.

Any clues would be appreciated.

Trevor

On Fri, 25 Feb 2005 12:09:16 -0800
  Trevor Peirce <tpeirce@digitalcon.ca> wrote:
> I don't suppose anyone might know why I hear ringing 
>transposed over itself when I place a call out via PRI?
> 
> SIP to SIP is fine
> SIP to IAX is fine
> SIP to PRI is always transposed
> 
> I mean sometimes you don't notice it much because it's 
>lined up right, but other times you'll hear a really long 
>ring (starts sounding normal, then sounds "weird" -- like 
>two rings played at the same time, then sound normal) or 
>quick choppy rings.  It seems very much like there is a 
>ring from the PRI and another ring from asterisk or the 
>Sipura phones & ATAs.
> 
> Any clues would be appreciated.
> 
> Trevor
It is exactly what you are stating. You are getting the 
rig tone generated by the local device and the normal ring 
genterated by the local telco. I have this exact same 
problem with an IAX softphone. I just turned off the local 
ring.

Sorry, but I can be no more help than that at this point.

Robert