Bandwidth allocation for VoIP traffic in network having interface between frame relay and ATM

A computer-readable medium having computer-readable program code to cause a computer system to:

• determine a frame relay data rate RFR for a Voice over Internet Protocol (VoIP) call based on a packetization time interval TS and its associated sample data size BS for a particular coder-decoder (CODEC), a size BHT of at least one of a frame relay header and a frame relay trailer, and a size BIP of at least one header in an IP packet for the VoIP call;
• determine a number of VoIP calls NUMVOIP that can be supported by a frame relay access link based on a bandwidth of the frame relay access link that is to be allocated to VoIP traffic and the frame relay data rate RFR;
• determine at least one network parameter based on NUMVOIP;
• and
• allocate bandwidth in an asynchronous transfer mode (ATM) network for the VoIP traffic based on the at least one network parameter.