1. A method of monitoring conference session resources in a media-based conferencing system, the method comprising: establishing, by a server computing device, a connection to one or more media engines hosting one or more in-process conference sessions; periodically capturing, by the server computing device, system level information, application level information, and meeting size associated with each of the in-process conference sessions from the media engines, wherein capture of the application level information includes: identifying a media flow for each end point device participating in one of the in-process conference sessions and a network from which the end point device is connected to the corresponding media engine using technical attributes of the end point device and of the network that are extracted from signaling data carried on the media flow between the end point device and the media engine; determining whether a first media negotiation profile associated with each identified end point device exists, the first media negotiation profile defining technical capabilities of the corresponding end point device and user media quality prferences of the corresponding end point device; determining whether a second media negotiation profile associated with the identified network exists, the second media negotiation profile defining technical capabilities of the identified network including bandwidth capacity and media flow quality limitations; and capturing a bitrate of each media flow, a session description of each media flow, information from the first media negotiation profile, and information from the second media negotiation profile for inclusion in the application level information; determining, by the server computing device, a session state associated with each of the in-process conference sessions based upon the captured information; determining, by the server computing device, a pool of available computing devices to provide resources to the in-process conference sessions; allocating, by the server computing device, one or more of the available computing devices to the in-process conference sessions based upon the session state; periodically reporting, by the server computing device, the session state associated with each of the in-process conference sessions and the pool of available computing devices to a network API module; and determining, by the network API module, a routing for subsequent communication session requests based upon the reported session state and pool of available computing resources.