[VOIPSEC] RE: Call Detail Records for VOIP Calls

[Mark Teicher]

Actually configuring CDR varies from PBX configuration to VOIP 
configuration.   For example, configuring CDR/SMDR on a traditional PBX is 
usually setting what speed and what output one wants it in (CRT, PRT 
(printer).  On the newer VOIP gateways, one can configure and select the 
various fields plus some additional ones that were not previously available 
on some traditional PBX systems.  The format for CDR/SMDR varies from 
traditional PBX also.  Parsing CDR/SMDR records can get quite interesting
For example:

0746 0001 7   9 811         5063041 70116                            5 
0     450 0
0746 0023 7   9 812     17195987656 70696                            5 
0     150 4
0747 0009 7   9 811         5328937 70400                            5 
0     320 4
0747 0005 7   9 812     12026854119 70349                            5 
0     210 4
0747 0010 7   9 811     18002304898 70485                            5 
0     360 4
0747 0007 7   9 811         5530473 47642                            5 
0     190 4
0747 0062 7   9 812     17036970821 47088                            5 
0     690 4
0747 0046 7   9 812     17034184437 47896                            5 
0     170 4
0747 0056 7   9 812         2461768 70592                            5 
0     680 4
0747 0010 7   9 812     17036812341 70625                            5 
0     100 4
0747 0232 7   9 812     17578360959 70475                            5 
0     230 4
0747 0023 7   9 811         2315291 70177                            5 
0     560 4
0747 0007 7   9 811         5428927 47870                            5 
0     420 0
0747 0015 7   9 811         2604840 70415                            5 
0     130 0
0747 0002 7   9 812         8060271 47969                            5 
0     060 0
0748 0008 7   9 811     18009748885 47361                            5 
0     450 0
0748 0003 7   9 812     18585416800 47717                            5 
0     680 0

As illustrated this is raw format, without padding numbers .  Some VOIP 
systems that replacing the traditional PBX systems do not always have the 
capability of providing SMDR or CDR.  Most of the newer VOIP systems 
possibly tie-in with some of the older CDR systems.  But as you can tell it 
is quite difficult attempting to ensure a VOIP migration is in compliance.



At 05:32 PM 4/15/2005, Robert Moskowitz wrote:
>At 03:50 PM 4/12/2005, Mark Teicher wrote:
>>Has anyone dealt with configuration of Call Detail Records for VOIP calls?
>>What is the logging requirements for Sarbanes-Oxley regarding how CDR 
>>records are to be kept and what format??
>
>How is this any different than CDR from the company PBX?
>
>>Can call detail records be split into incoming and outgoing calls based 
>>on trunk groups routing voice traffic and then re-assembled for 
>>investigative reasons?
>>What about parsing through call detail records for unusual calling 
>>patterns or duration based calls ??
>>
>>
>>
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>
>Robert Moskowitz
>Senior Technical Director
>ICSA Labs, a division of Cybertrust, Inc.
>W:      248-968-9809
>F:      248-968-2824
>E:      rgm at icsalabs.com
>
>There's no limit to what can be accomplished
>if it doesn't matter who gets the credit
>