A communication session is established between a first communication endpoint and a second communication endpoint. A determination of a network condition is made, such as determining a type of network impairment. In response to determining the network condition, a message is sent to the second communication endpoint that requests the second communication endpoint to change a process for sending packets in the communication session. The process for changing packets can include: having the second communication endpoint send the same packets in the communication session at least twice; having the second communication endpoint use a different packet priority value for the communication session; having the second communication endpoint switch from a connection oriented protocol to a connectionless protocol for the communication session; and having the second communication endpoint switch from the connectionless protocol to the connection oriented protocol for the communication session.