Broadly speaking, the present techniques relate to a computer implemented method for enabling template-based registration, the method performed by an intermediary apparatus in communication with a first device and a server, the method comprising: receiving, from the first device, a registration request comprising one or more device identifiers for the first device; determining the availability of template information for the first device based on or in response to the one or more device identifiers; when the template information for the first device is unavailable: generating template information for the first device; or requesting, from the server, the template information.