gud day, hope this is not OT. currently encountering problem with ATA FXO FAS problem especially on CDR. the scenario is dis: ATA of grandstream and sipura, send 183 and 200 simultaneously even if the FXO port is not yet ringing. since 200 was receive already then CDR starts the timer. not good for a prepaid system research: all documents that i have read points me to a blank wall. possible workaround: upon receiving of 200 delay for a while so that CDR does not start immediately. prepaid customer is not that much. help: im asking the developers if this is possible? how can i do this.. all help is welcome, regards arvin -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20071127/19ec5e89/attachment.htm