[asterisk-users] Looking for a PSTN DTMF echo test

[sean darcy]

I'm having problems with DTMF on outgoing DAHDI. See 
https://issues.asterisk.org/view.php?id=18084

I've tested that the dtmf comes into * correctly. I know that it works 
if I use SIP outbound. But it doesn't work if I use DAHDI outbound.

I'd like to figure out what the called party on outbound DAHDI does 
receive. Is there any PSTN number that echoes received DTMF tones? I've 
found some dtmf echo tests for sip, but none on pstn.

Thanks,

sean