Turns ON (true) of OFF (false) ATM bandwidth checks for new voice calls going through the system. The bandwidth check is based on the configuration of the Rx and Tx traffic descriptors used for the ATM VC/CID that the call is going across. If rtVBR is being used then the SCR is used for the bandwidth calculation cell rate. If CBR is being used then the PCR is used for the bandwidth calculation cell rate. For any other service category, a call is always allowed and the voice quality is not guaranteed. The bandwidth calculation looks like this (assume approx 180 AAL2 cells used for a voice stream):

if ((rxCellRate - (180 * numActiveCallsOn VC)) < 180) { /* reject call */ } else if ((txCellRate - (180 * numActiveCallsOnVC)) < 180) { /* reject call */ } else { /* proceed with call */ }