There are a ton of reasons a company might want to record its own VoIP calls, starting with Sarbox compliance and running through points like customer service, security and even CALEA. Witness Systems says its running on a third of Cisco's Unified Contact Center systems, and AudioCodes's SmartWorks IPX collects voice packets and reports D-channel information. But be careful about running afoul of privacy laws, which differ from state to state.
For more information about capturing VoIP traffic:
- check out this article [1] in VON Magazine
Links:
[1] http://www.vonmag.com/webexclusives/2006/07/13_Recording_Corporate_VoIP%20.asp