Abstract: Establishing a communication channel via a relay server with reduced setup time. Upon request by an initiating communication device a relay allocation server may allocate a single relay server for use in a communication session between the initiating communication device and one or more recipient communication devices. The relay server may be selected to perform favorably for the initiating communication device. Messaging for establishment of the communication session may be performed using persistent messaging connections, to avoid connection establishment cost. Messaging may also be performed using address tokens to avoid the cost of discovering global IP addresses. Following establishment of the communication session, the relay server may discover the IP address of one or more recipient communication devices, and may initiate reallocation of those devices to another relay server.

Abstract: A notification server may be configured to receive a message from a device, determine a device location from the message, determine a location identifier corresponding to the determined device location, and send the location identifier to the device. The device may be configured to generate a configuration identifier based on the location identifier and send a configuration data request including the configuration identifier to a cache server. The cache server may be configured to receive the configuration data request from the device, select a device configuration corresponding to the configuration identifier, where the device configuration is specific to the device location, and send the selected device configuration to the device. The device may be further configured to configure the device according to the selected device configuration.

Abstract: A notification server may be configured to receive a message from a device, determine a device location from the message, determine a location identifier corresponding to the determined device location, and send the location identifier to the device. The device may be configured to generate a configuration identifier based on the location identifier and send a configuration data request including the configuration identifier to a cache server. The cache server may be configured to receive the configuration data request from the device, select a device configuration corresponding to the configuration identifier, where the device configuration is specific to the device location, and send the selected device configuration to the device. The device may be further configured to configure the device according to the selected device configuration.

Abstract: Establishing a communication channel via a relay server with reduced setup time. Upon request by an initiating communication device a relay allocation server may allocate a single relay server for use in a communication session between the initiating communication device and one or more recipient communication devices. The relay server may be selected to perform favorably for the initiating communication device. Messaging for establishment of the communication session may be performed using persistent messaging connections, to avoid connection establishment cost. Messaging may also be performed using address tokens to avoid the cost of discovering global IP addresses. Following establishment of the communication session, the relay server may discover the IP address of one or more recipient communication devices, and may initiate reallocation of those devices to another relay server.