Access change for re-routing a connection

An apparatus comprising:

• a transmitter configured to transmit a connection initialization request message to a communication connection terminating node for initializing a communication connection in a first communication domain;
• a receiver configured to receive a response to the connection initialization request message, the response indicating a rejection of a media flow type of the communication connection in the first communication domain and comprising a predetermined indication portion, the predetermined indication portion indicating a re-routing request of the communication connection to a second communication domain;
• and
• a processor configured to process the received response.

A method comprising:

• transmitting a connection initialization request message to a communication connection terminating node for initializing a communication connection in a first communication domain;
• receiving a response to the connection initialization request message, the response indicating a rejection of a media flow type of the communication connection in the first communication domain and comprising a predetermined indication portion, the predetermined indication portion indicating a re-routing request of the communication connection to a second communication domain;
• and
• processing the received response.