Abstract: A device for securely receiving a package, the device being suitable for its attachment to an external element of a door, comprising: at least one fastener and a safety lock. Advantageously, the device further comprises: a receiving element; a pass-through retaining element; and a container bag. Also advantageously: the safety lock is configured for blocking the pass-through retaining element when said retaining element is inserted in the receiving element; and the container bag comprises through holes that can be brought together by arranging the pass-through retaining element therethrough, so that the container bag is closed when the pass-through retaining element is blocked at the receiving element. The present invention also relates to a system and a delivery method that comprise said device.

Abstract: This invention is especially intended for playing Ring Tones (referred to hereinbelow as “RT's”) on a called computer terminal, and/or Ring Back Tones (referred to hereinbelow as “RBT's”) on the calling computer terminal, in voice communications selected from users of different computer terminals, mainly personal computers (referred to hereinbelow as “PC's”) by means of a network which is at least partially a data network capable of supporting voice, such as the Internet. RT's and/or RBT's are played by means of a continuous download of said tones (referred to hereinbelow as “streaming”) given that neither RT nor RBT are present at any time on any of the PC's, but rather are downloaded from a remote server where RT's and/or RBT's are located. In general, the user of the called PC will be the one determining what RT and/or RBT will be played in terms of the different optional factors such as which calling PC is involved.