Page 184 of 910 Features
553-3001-365 Standard 4.00 August 2005
IP Call Recording introduces the IE pair:
• This Party IP IE (monitored party)
• Other Party IP IE (remote party)
The IP IE pair is similar to the existing IE pairs:
• For DNs: This Party DN IE, Other Party DN IE
• For TNs: This Party TN IE, Other Party TN IE
The IP IEs are optional in the Unsolicited Message Status (USM) (Active)
and USM (Restore) messages. Note the following:
• If the USM message applies to a monitored key on a digital telephone,
then the IP IEs are not sent.
• If the USM message applies to a monitored key on an IP Phone, then the
IP IEs are sent: one for the monitored party and one for the remote party.
A call recording application is provided with status update messages for the
call keys of any IP Phone it is monitoring. These USM messages contain the
IP address and port number information for the monitored IP Phone and the
remote party in the active call. By using a Layer 2 switch that supports port
mirroring, the call recording device can monitor the media stream for the
active call and record it.
Enhanced IP Call Recording
CS 1000 Release 4.5 introduces an enhancement to IP Call Recording that
provides a direct method of capturing and recording VoIP calls. The feature
enhancement implements a mechanism to record the IP media stream to an
external media-recording device by instructing the IP Phone to send a
duplicate media stream to a third-party call-recording application. The
third-party call-recording application provides the recording and playing
function for the IP calls.
This feature enhancement is supported on the Phase II IP Phone 2001, IP
Phone 2002, IP Phone 2004. and IP Softphone 2050.