| 摘要 |
A telephony network includes a number of switches that are coupled by respective trunk sets. In one or more of the switches, both a main queue storing identifiers of trunks that are available and a shadow queue are maintained. The shadow queue is used to store identifiers of available trunks in an order that tracks the order of a corresponding queue in a switch on the other end of the trunk set. By using both the contents of the main queue and the shadow queue to perform selection, trunk glare can be reduced.
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