PRI signaling - Make user hear telco messages

We have a PRI and whenever something goes wrong at the other side (like "number has changed", "number out of service", etc.) asterisk returns the DIALSTATUS and hangs up. is there a way to make asterisk actually play those original messages from the telco side?

I tryed to play around with priindication already.

priindication=inband is the default behaviour of asterisk. Just for testing i tried to set it to priindication=outofband. Neither setting changed the asterisk behaviour.

I know that i can read DIALSTATUS and play the appropiate message bymyself, but there is a problem. There are more possible causes of a failed call than DIALSTAUSes. For example:

You get a CHANUNAVAIL if a number doesn't exist at all.
You get a CHANUNAVAIL also if you call a cellphone that has been switched off.

We really need to get the "real" messages from the telco-side.

Is there a way?

Our hardware is a Digium te102p

Thanks
wonderworld

There are ways to do this as mentioned on the digium forum

But from a Site of mine with a TE110 that listen to the inband tones the settings are

in sip.conf

progressinband=no

and in zapata.conf
the relevent setting was

priindication=outofband

With these 2 set this site hears all tones

Ian