Audiocodes Mediant SBC upgrade - 10 SIPREC sessions, on an HA SBC, within the 1000-2490 session range (100 to 249 units)

SIPREC license should be bought on top of an SBC session license. For example, to record one bidirectional session, you need one SBC session and one SIPREC session license. When recording to multiple recorders simultaneously, multiply number of licenses by number of recorders