K.4 LEMF Considerations
33.1083G Security3GPPHandover interface for Lawful Interception (LI)Release 17TS
The use of IPsec for the delivery of VoIP-CC-PDU is recommended.
The required functions in the LEMF are:
– Collecting and storing of the incoming packets with the sequence numbers and time-stamp.
– Correlating of CC to IRI with the use of the Voip-Correlation Number in the VoipLIC-header.
Annex L (normative):
Conference HI3 Interface