16th March 2005 at 15:53 #29169
could be. I think – yes.
Also, the newer billing systems used on PBXes with ISDN PRI rely not on the 12/16Khz, but on the ETSI AOC (Advice of Charge) messages.
The beast (Cisco) does not pass AOC messages between its PRI interfaces.
Go figure it 🙂