This configuration was tested on Software Load: R011i.03.0.526.5 and Software Load: R012i.01.1.414.1, so, keep in mind it may not work under previous or later versions (or even any other version!).
(add an entry for your billing linux host) CHANGE NODE-NAMES IP LINUX-HOST 192.168.0.50
(point your box which host and port it should send billing) CHANGE IP-SERVICES CDR1 C-LAN LINUX-HOST 50000
(tell your box how to generate CDR there) CHANGE SYSTEM-PARAMETERS CDR (page-1) Primary Output Format: customized Primary Output Endpoint: CDR1 (page-2) 1: date 2: space 3: time 4: space 5: sec-dur 6: space 7: clg-num/in-tac 8: space 9: in-trk-code 10: space 11: dialed-num 12: space 13: code-used 14: return 15: line-feed
On Linux/Unix hosts:
(catch the feed from your Definity box) $ netcat -l -p 50000 >> my-billing.txt &
(watch while your billing grows) $ tail -f my-billing.txt
NOTE: I noticed the ocasional generation of some nasty ^@^@^@ characters. Until now I have not found a way to stop generating them, so, I'm just filtering them out in Linux itself, with cat my-billing.txt | tr -d '\0' > my-billing-beauty.txt.
(*) Thanks to manfmmd for the updated netcat links.