Method and node for the control of a connection in a communication network

Method for controlling a connection in a communication network comprising a plurality of nodes (MSC, TSN, MG), wherein a connection (CO) is established stepwise between nodes (MSC, TSN, MG) and at least two of the nodes (MSC, TSN, MG) are adapted to insert an entity into the connection (CO), affecting the entity connection quality, or to remove an entity affecting the connection quality of the connection wherein an indicator is forwarded between nodes controlling (CO) connection in which the indicator indicates whether the connection (CO) comprises an entity affecting the connection quality, a node which decides to insert an entity into the connection or remove an entity adjusts the indicator accordingly before sending it to another node (MSC, TSN, MSC ') controlling the connection (CO), and a node (MSC, TSN, MSC') controlling the connection (CO) checks the value of the indicator when making a decision to insert or remove an entity.