[asterisk-users] VOIP PRI Gateways

[Shitian Long]

If I understand you correctly, you test a service which converter SIP to ISDN PRI 



On Mar 8, 2013, at 2:16 AM, Daniel Harper <daniel at harper.net.nz> wrote:

> I was hoping someone might have some knowledge to impart regarding
> VOIP PRI Gateways or the psudo ISDN services being offered these days.
> The official line in Australia is that "true" ISDN services are on
> their way out.
> 
> I am testing a service provided by one of the telcos I am told that it
> cannot provide ISDN cause codes for disconnected/invalid numbers and
> all we get is the audio. Also the service no longer sends the progress
> event RINGING to indicate the line is actual ringing (as apposed to
> the audio)
> 
> Has anyone else ran into this problem and does anyone have any ideas
> how to address it? Can DAHDI detect ringing tones on PRI lines?
> 
> --
> Cheers,
> 
> Daniel
> 
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