Faciliating reliable connection admission control for telecommunications system using aal2 signaling

In a telecommunications network, for establishing or modifying a radio connection a node (N<SUB>1</SUB>) prepares and sends an AAL2 signaling message ( 110 ) for use by a connection admission control function ( 106 ) of another node (N<SUB>2</SUB>) of the telecommunications network. In accordance with the present invention, the AAL2 signaling message includes a timescale value ( 112 ) which represents a timescale over which at least one bit rate value characterizing the radio connection is defined. Including the timescale value ( 112 ) in the AAL2 signaling message ( 110 ) facilitates more efficient connection admission control by enabling, e.g., bandwidth requirements of radio connections to take into consideration delay requirements. In an illustrated example embodiment, the timescale value ( 112 ) is a burst inter-arrival time (BIT) bit value which is a time which elapses between a beginning of two subsequent bursts of AAL2 CPS (Common Part Sublayer) packets.