Indicates the state of the endpoint. 'mgEndpointActive' - the endpoint is in service and operational. 'mgEndpointFailed' - the endpoint is in service but not operational, e.g. because a line that the endpoint belongs to is in a state of service affecting alarm. 'mgEndpointDegraded' - the endpoint is in service but not fully operational, e.g. in cases with endpoints with channels on multiple lines, when one of the lines is in a state of service affecting alarm If MGCP is used as the control protocol, the following transitions will generally trigger an RSIP command: from 'mgEndpointActive'/'mgEndpointDegraded' to 'mgEndpointFailed' or from 'mgEndpointFailed' to 'mgEndpointDegraded'/'mgEndpointActive'. Transitions between 'mgEndpointActive' and 'mgEndpointDegraded' will generally not trigger emission of RSIP.