[Asterisk-Users] FXO Cards in Australia

[Matthew Enger]

Hello,

Inbound dtmf works without patches but you do here tones now and again
which is annoying.

Echo can be bad, I think it has to do with analogue phone lines at other
end, mobile and digital calls seem to be okay from what I have seen. 

As for outbound DTMF, the ISDN driver does not generate tones but it
does send it out of band. So if the other side accepts the out of band
dtmf it works. I have for example found that calling Telstra does not
work however calling a small ISP in sydney did. 

As for capi, am hoping to get access to capi cards soon.

Regards,
	Matthew Enger
	menger at xi.com.au

On Mon, 2003-11-17 at 23:53, Adam Goryachev wrote:
> > You mentioned echo problems with the NetJet cards. Is this still the
> > case or was it last time you tried that it that had echo 
> > problems? I did
> > a Google search and didn't find much on the echo problems with them.
> 
> Yes, echo problems do still exist, I would suggest testing it before
> going live.
> 
> A couple of points to note:
> 1) Using soft phones seems to compound the issue
> 2) A faster CPU seems to help (I upgraded from a PII300 to a Athlon
> 2200)
> 3) When dialling in/out over the ISDN DTMF won't work (at least I
> haven't seen the patch which purportedly allows it to work) when you use
> the isdn4linux patch.
> 4) Without the above kernel patch you will hear DTMF tones instead of
> the other persons voice when they talk. They don't hear the tones or
> notice anything wrong.
> 
> In short, if you can live with the above problems, then you can get away
> with it, from what I know now, I would suggest getting a chan_capi
> capable device, though I haven't tried that yet.
> 
> I am about to switch from a netjet card to a TE4xxP card as soon as
> possible, I have a OnRamp 10 being installed tomorrow. This is largely
> to increase the number of incoming lines, but partly to resolve the
> above issues, and also partly to try to resolve long running reliability
> issues which may in fact be related to the TDM400P anyway. In which case
> I will be looking for a T1 channel bank some time soon :(
> 
> PS, I have a brand new Traverse Netjet card available (it was to be used
> for a dial-up ISDN internet account) which is no longer needed.
> 
> Regards,
> Adam
> 
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-- 
Matthew Enger <menger at xi.com.au>
Xintegration