Abstract: A VoIP communication service using communication tokens, such as QR codes, to identify the receivers can provide callers with the ability to communicate with the receivers using VoIP technology, without the need to pre-registering with the VoIP service provider that hosts the communication. The tokens can be customized by having a profile, which can include conditions imposed by the receivers on the callers. The tokens can be used in a call center to provide VoIP communication services.

Abstract: A VoIP communication service using communication tokens, such as QR codes, to identify the receivers can provide callers with the ability to communicate with the receivers using VoIP technology, without the need to pre-registering with the VoIP service provider that hosts the communication. The tokens can be customized by having a profile, which can include conditions imposed by the receivers on the callers. The tokens can be used in a call center to provide VoIP communication services.

Abstract: This patent describes a system where we can share some information such as photos, images, electrical documents, and web screen through the TCP/IP or Peer-to-Peer protocol network. From this system, one user can activate a drawing board application and connect his/her computer with the other users through the friend list. One client's application can activate another's application in remote devices by using the session initial protocol (SIP) or short message peer to peer protocol (SMPP). By using SMPP or SIP, one user can trigger the application of another user in a remote device to set up an interactive collaboration. After the connection has been set up, the user can draw and share drawing results with other connected computers. One client can also open a browser inside the working pad and input URL to browse the web's contents. At the same time, the web browser of other connected client's devices will be automatically opened and synchronized the web's content.

Abstract: An air inlet grille for an appliance onboard an aircraft includes a screen having an inside-facing surface and an outside-facing surface, a plurality of airflow openings formed within the screen between the inside-facing surface and the outside-facing surface, and a plurality of tubes disposed on the inside-facing surface of the screen where openings on one end of the plurality of tubes are aligned with the plurality of airflow openings. A length of the plurality of tubes is at least twice a diameter of the plurality of airflow openings with which the plurality of tubes is aligned.