In order to make it possible to suppress increase in the cost of message retransmission, this message delivery device delivers a message, stores a history relating to the success or failure of the delivery to each of destinations of the message in a history storage unit, when the delivery of the message has failed, determines on the basis of the history whether to perform retransmission of the message, and when determining to perform the retransmission, performs the retransmission of the message.

An audio/video (A/V) recording and communication doorbell, including a camera, a speaker, a microphone, a power manager, a battery, an AC/DC rectifier, and a DC/DC converter. The doorbell is configured for connection to an external AC power source through the AC/DC rectifier and the DC/DC converter. The power manager is configured to draw power, up to a threshold power, from the AC power source and to draw supplemental power from the battery such that the power drawn from the AC power source never exceeds the threshold power. The present A/V recording and communication doorbell can thus be connected to an existing household AC power supply and an existing doorbell signaling device without causing inadvertent sounding of the signaling device.

An intercom system for collective housing comprises a main entrance station with a camera, a residential entrance substation with a camera and a residential master station for each residence in the housing, a storage unit that stores videos (V1) of visitors shot by the camera of the main entrance station by associating the videos with residence IDs of the respective residences to visit, and a control unit. The control unit includes a check unit that checks the videos (V1) against a video (V2) shot by the camera of a residential entrance substation. If the check by the check unit indicates a match, the control unit compares the residence ID associated with the match stored in the storage unit with that of the residence in which a call button of the residential entrance substation has been operated. The operation of the call button is invalidated if the IDs are different.

A system includes a customer network and a telephony server. The customer network is associated with an independent carrier (IC), a native carrier, or both. The customer network includes a call manager, a telephone gateway, an internet gateway, a first device associated with the IC, and a second device associated with the native carrier. The first device communicates with the telephone gateway via the call manager. The second device communicates with the internet gateway. The telephony server is associated with the native carrier. The telephony server supports traffic from the first device and the second device. The telephony server includes a PBX and a session border controller (SBC). The SBC communicates with the telephone gateway via a session initiation protocol (SIP) trunk.

A doorbell system (1) includes a plurality of doorbells (2-1 to 2-n) each of which is attached to each residence and includes an operation unit (22) and a camera (26), and a control unit (4) capable of performing communication with the plurality of doorbells (2-1 to 2-n). The control unit (4) is configured to acquire position information of each of the plurality of doorbells (2-1 to 2-n) and an image captured by the camera (26), to generate target information about a target, based on the position information and the image, and to transmit the target information to an external device (3-1 to 30n) associated with a specific user.

An integrated circuit for processing audio signals from a microphone assembly, combinations thereof and methods therefor, including a multi-issue processor configured to execute multiple instructions concurrently and connectable to a memory with a plurality of locations each represented by a corresponding index. Bit-reversal is performed on a sequence of audio data bits stored in memory by concurrently performing a load or store operation related to a first index and determining whether to perform a load operation for a second index.

A mobile intercom device is described that is configured to facilitate the assignment and reassignment of functions during use. A plurality of button pairs, each including a talk button and a listen button, and a display screen are provided on the mobile intercom device. An electronic processor of the mobile intercom device is configured to display a list of alphanumeric identifiers on the display screen, each alphanumeric identifier in the list of alphanumeric identifiers corresponding to a different one of a plurality of channels on the intercom system. A selection of a first alphanumeric identifier from the list is received and a channel on the intercom system corresponding to the first alphanumeric identifier is assigned to a first button pair of the plurality of button pairs.

The invention relates to, among others, an intercom network (10), comprising a plurality of speech stations (11a, 11b, 11c) and at least one switching center (13, 16), wherein from each speech station connected to the switching center a connecting line (12a, 12b, 12c) extend to the switching center, wherein the connecting line provides a direct connection, respectively, between the switching center and the connected speech station, and wherein the speech stations of the intercom network, due to an audio data communication via the switching center, can enter into audio communication in real time. The particular feature consists, among others, in that at least one speech station (11a) comprises a terminal (53, 54) for a second connecting line (50, 50a, 50b, 50c), via which the speech station is connected with the same switching center (13) or with another switching center (16).

In some embodiments, the present invention provides for a computer-implemented method, including: causing, by a specifically programmed computer call management communication system, to transform, over a computer network, computing devices of users, into corresponding specialized call management devices, by having each computing device to execute a specialized call management client software application being in electronic communication with the specifically programmed computer call management communication system over the computer network by utilizing SIP; where the specialized call management client software application generates specialized graphical user interfaces configured to allow each user to concurrently initiate and maintain, over the computer network, a plurality of voice communications of distinct types with other users, by, for example, allowing each user to independently and dynamically divert, in real-time, any voice communication of any type to any audio device associated with a corresponding specialized call management device of such user.

In some embodiments, the present invention provides for a computer-implemented method, including: causing, by a specifically programmed computer call management communication system, to transform, over a computer network, computing devices of users, into corresponding specialized call management devices, by having each computing device to execute a specialized call management client software application being in electronic communication with the specifically programmed computer call management communication system over the computer network by utilizing SIP; where the specialized call management client software application generates specialized graphical user interfaces configured to allow each user to concurrently initiate and maintain, over the computer network, a plurality of voice communications of distinct types with other users, by, for example, allowing each user to independently and dynamically divert, in real-time, any voice communication of any type to any audio device associated with a corresponding specialized call management device of such user.