Methods and systems for establishing electronic communications in a hosted VoIP PBX using two tiered load balancing

A system for providing two-tiered load balancing for a hosted voice-over Internet protocol (VoIP) private branch exchange (PBX), comprising:

• a plurality of VoIP-enabled client devices in communication with the hosted VoIP PBX, wherein each client device is assigned to an associated client device group;
• a first data storage accessible by the hosted VoIP PBX that dynamically registers the associated client device group to which each of the plurality of client devices is assigned;
• a plurality of clusters of computing resources in communication with the hosted VoIP PBX, wherein each cluster of computing resources includes a plurality of server nodes, wherein each of the server nodes is configured to handle calls to and from the plurality of client devices in communication with the hosted VoIP PBX;
• at least one device load balancer in communication with the hosted VoIP PBX that is configured to assign each associated client device group to a specific one of the plurality of clusters of computing resources, wherein assignment of each associated client device group to a specific cluster among the plurality of clusters of computing resources by the at least one device load balancer is based on prescribed conditions;
• a second data storage accessible by the hosted VoIP PBX that dynamically registers one or more nodes within the specific cluster of computing resources to which an associated primary client device within a client device group has been assigned;
• and
• at least one call load balancer for routing a call associated with the primary client device to a node within the specific cluster of computing resources assigned to the client device group with which the primary client device is assigned.

A two-tier load balancing system for a server-based voice-over Internet protocol (VoIP) private branch exchange (PBX), comprising:

• a plurality of VoIP-enabled client devices in communication with the VoIP PBX, wherein each of the plurality of client devices are assigned to an associated client device group based on a logical relationship among the plurality of client devices assigned to the associated client device group;
• a plurality of clusters of computing resources in communication with the VoIP PBX, wherein each cluster of computing resources is configured to handle calls to and from the-plurality of client devices within an associated client device group;
• a device load balancer for balancing one or more associated client device groups among the plurality of clusters of computing resources, and;
• a call load-balancer for dynamically to monitoring current conditions and thresholds within the cluster of computing resources to determine whether certain predefined conditions are being met, and wherein the call load balancer dynamically assigns any future communications to a respective one of a plurality of server nodes within the selected specific cluster of computing resources based on the current conditions and thresholds of the respective one of the plurality of server nodes.

A method for establishing electronic communications in a hosted voice-over Internet protocol (VolP) private branch exchange (PBX), wherein the VoIP PBX includes a plurality of VolP-enabled client devices, comprising the steps of:

• assigning each of the plurality of client devices to a respective client device group, wherein the client devices in each of the respective client device groups are logically related with each other;
• dynamically assigning each respective client device group to a preselected cluster of computing resources, configured to handle electronic communications with the plurality of client devices, and wherein assignment of a specific client device group to a specific preselected cluster of computing resources is based on a set of predefined conditions selected for the specific client device group;
• identifying the specific client device group with which the primary client device is assigned in response to a specific electronic communication request with a primary client device from the plurality of client devices and then identifying the specific preselected cluster assigned to the specific client device group with which the primary client device is assigned;
• routing the specific electronic communication associated with the primary client device to the identified specific preselected cluster;
• dynamically determining if predefined conditions are currently being met within the identified specific preselected cluster;
• and
• if the predefined conditions are currently being met, then establishing the electronic communication request associated with the primary client device with the identified specific preselected cluster.