If an answerer receives an offer that contains an SDP 'dtls-
connection' attribute with a 'new' value, the answerer MUST insert a
'new' value in the associated answer. The same applies if the
answerer receives an offer that contains an SDP 'dtls-connection'
attribute with a 'new' value, but the answerer determines (based on
the criteria for establishing a new DTLS association) that a new DTLS
association is to be established.
Section 6.3:
If an answerer receives an offer that contains an SDP 'dtls- connection' attribute with a 'new' value, the answerer MUST insert a 'new' value in the associated answer. The same applies if the answerer receives an offer that contains an SDP 'dtls-connection' attribute with a 'new' value, but the answerer determines (based on the criteria for establishing a new DTLS association) that a new DTLS association is to be established.
Will change 'new' to 'exisitng'