Abstract: In one embodiment, a system includes a database that stores administrative information of an Internet protocol private branch exchange (IP-PBX). The administrative information correlates to a geographic configuration of endpoint devices connected via low bandwidth network links. A node is operable to access the database in order to retrieve and analyze the administrative information. Following the analysis, the node generates a test call pattern that is limited to test calls between the endpoint devices connected across the low bandwidth network links. The node is further operable to place the test calls of the test call pattern and acquire voice quality information therefrom. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

Abstract: A method is provided for monitoring channels and controlling calls. Multiple channels provided by at least one digital line are monitored. Based on this monitoring, the present invention determines when all of the multiple channels are occupied. At least one of an incoming call and an established call is given priority when all of the multiple channels are busy. The priority is based on predetermined inputs from a user. The call with priority is provided on one of the multiple channels. The present invention then determines when one or more of the multiple channels are available. When one of the multiple channels becomes available, the action based on the call priority is automatically disabled.