Regardless of whether an Active or Passive management system is deployed the targeted call flow is not interrupted and the intercepted signalling/media can be duplicated to the third party collection server in a range of formats:
Our Lawful Intercept architecture supports the ETSI 101 671 + ETSI TS 102 232-5 specifications providing comprehensive support for H1,H2 and H3 interfaces.
This mode of operation enables integration directly into Law Enforcement Agency and Lawful Intercept Mediation Servers.
The SVI-SBC supports SIPREC as defined in RFC7245. This defines a SRC (Session Recording Client) and a SRS (Session Recording Server). The SBC acts as the SRC.
When a targeted communication is intercepted a SIP session is setup between the SRC and SRS. Through SIP signalling and RTP/RTCP both the media information and the metadata information of the targeted communication are transported to the Session Recording Server.
The SVI-SBC SIP Duplication Mode is a simplified tapping model that only uses SIP over the HI3 interface to pass the RTP streams to a Media Server device.
For a single targeted communication, two SIP calls are sent to the Media Server with each call containing the duplicated media packet for each leg of the targeted call.
Whether in Active or Passive mode a Squire Technologies lawful interception solution can provide protocol conversion insuring support for legacy protocols and extending the life of incumbent lawful intercept recording and media devices.