Described are techniques for establishing communication between multiple devices. Responsive to a request received from a first device, connection data associated with one or more other devices may be accessed to determine whether the other devices may be accessed via a HTTP connection or a SIP connection. Parameters of the communication may also be determined from the request. Based on configuration data determined from the devices, communication data received from the first device may be transcoded for receipt by other devices, and data received from other devices may be transcoded for receipt by the first device. Web data unrelated to communications between devices may be passed to a web server.