yes you will need to change it to trunk side
will need adequate taps on the MBG used for sip proxy
the ASC will also need enough port licenses to cover the trunks
trunk side will record whole call including ringing , ivr messaginge tc
wont record internal calls
on the integration for the cti, the MBG sip trunk should be active and the MIVB shouldnt be active.
in the monitored points you set the SIp peer name and dont list any extensions
then under the 1st tenant you can set n extension block list to block the extensions you dont want to be recorded
- will have to list EHDU and sip softphones as well as base extensions