Which statements are correct?

It is possible to deploy acombination of standard TDM PBX(s) and sip server(s).

Genesys SIP server is capable of processing SIP signing and RTP/RTCP streams as well.

Customers who have a legacy PBX deployed and want to deploy Genesys SIP Server have to dismantle their legacy infrastructure.

SIP Server supports the exchange of early media before a particular session is accepted.