User manual

MX-ONE SYSTEM DESCRIPTION
42 21/1551-ASP 113 01 Uen N2 2014-01-28
4.7 VoIP Recording
With active VoIP recording, the recording system will order the terminal
to make a copies of received and sent RTP or SRTP packets and
forward those to the recorder, preferably as two logical streams where
received and sent packets are separated. Certain features of advanced
VoIP recording systems are dependant on the receipt of two separate
voice streams.
Recording policies are defined in the recording systems, i.e. record all
calls (Total recording), selective recording based on e.g. call origin and
record on demand based on user input.
Active VoIP recording relies on integration with the PBX as the recording
system must know the actual IP address of the users terminal when
ordering a terminal to start recording. Furthermore, if encryption is used,
the recording system must get the encryption keys. The integration is
normally using SIP between the recorder and the terminal and CTI
between PBX and recorder.
MX-ONE supports Active/Record-on-Demand recording of encrypted
calls in combination with Aastra 6700i SIP phones and Aastra
7400ip/Dialog 4400 H.323 phones. Encryption key handling is supported
over TR87/CSTA3 and CSTA1 via Application Link.
Figure 16:Active IP recording
4.8 Recorded Voice Announcement
The Recorded Voice Announcement (RVA) feature allows recorded
voice announcements to be provided to a calling or connected party to
inform of the status of the call in various traffic cases, for example when:
• the call is diverted
• the call is in queue
• the call is parked
• the call is answered by a PBX-operator
LAN
VoIP recorder
WAN
LAN
PBX
= copy of RTP/SRTP to/from user
CTI
Control signalling