Abstract:
A method for establishing a communication connection includes transmitting an identification for identifying a first communication device to the first communication device or a second communication device via a packet-switched first communication connection between the first communication device and the second communication devices, and using the identification to establish a circuit-switched second communication connection between the first communication device and the second communication device.
Abstract:
A communication device may be provided. The communication device may include: a requester to request information indicating communication devices that provide pre-determined data; a receiver to receive the information indicating communication devices that provide the pre-determined data; a determiner to determine a download target based on the information indicating communication devices that provide the pre-determined data; and a transmitter to transmit information indicating the determined download target for a peer-to-peer communication of the pre-determined data from the download target.
Abstract:
A telecommunication system for bidirectional data transmission of a data set between a data transmission device and a data reception device via at least one packet-oriented network device, which includes encapsulation of the data set to enable a connection-oriented data transmission of the data set; connection-oriented transmission of the encapsulated data set by means of at least one mobile telephone from the data transmission device to a base station of a mobile telephone network; evaluation of the data encapsulation protocol in the base station for an unpacking of the data set to enable a packet-oriented data transmission of the data set; and packet-oriented transmission of the data set from the base station to the data reception device.
Abstract:
A method for transmitting short messages (5) in a telecommunications network (10) is proposed, which enables especially simple, convenient downloading of data fields (15, 20, 25, 30) of the short message (5) from a network operator (70). A notice is sent to a subscriber (60) of the telecommunications network (10) as a function of a short message (5) transmitted to the telecommunications network (10) for the subscriber (60). With the notice, data that include items of information about the makeup and/or content of the short message (5) are transmitted to the subscriber (60).
Abstract:
A communication terminal into which communication data can be input and which can receive a message signalling that at least one further communication terminal is ready to receive the communication data. Following receipt of the message, a transmission device configured to operate in a first mode, in which it sends data at a first data rate, and in a second mode, in which it sends data at a second data rate, which is higher than the first data rate, is used to send the communication data in the second mode.
Abstract:
In an embodiment, a communication device may be provided. The communication device may include a first communication interface configured to receive a first data portion from a corresponding communication device. The communication device may further include a second communication interface configured to receive data from a further communication device. The further communication device may receive a second data portion from the corresponding communication device. The first data portion and the second data portion may be useful data for a user of the communication device. The communication device may further include a synchronizer configured to synchronize the first data portion with the second data portion based on the data received from the other communication device via the second communication interface.
Abstract:
In a method for assigning a control role for a collaborative communication session, a message is received which indicates, independently of a media transfer request for a collaborative communication session, that a control role for the collaborative communication session is intended to be assigned to at least one terminal which is specified by the message as a holder of a control role, and a control role for the collaborative communication session is assigned to the at least one terminal which is specified by the message as the holder of a control role. In a method for requesting a control role for a collaborative communication session, a message which corresponds to the received message is sent. The methods are carried out by appropriately designed apparatuses.
Abstract:
A method for ascertaining active sessions may include receiving a request to ascertain active sessions by a session information server; transmitting respective challenges for document contents, which indicate whether sessions are currently active, from the session information server to at least one document management server which has a respective associated communication session server, wherein in the case of precisely one document management server the latter has at least two associated session servers; receiving respective challenge responses from the document management server, which indicate active sessions controlled by the session server associated with the respective document management server or which indicate that such sessions currently do not exist, by the session information server; and transmitting a first response, which indicates one or more active sessions controlled by the session servers associated with the document management server or which indicates that such sessions currently do not exist, by the session information server.
Abstract:
A method for ascertaining active communication sessions may include receiving a request to ascertain active communication sessions by a communication session information server; transmitting respective challenges to determine whether communication sessions are currently active from the communication session information server to at least two communication session servers; receiving respective challenge responses from the at least two communication session servers, which indicate one or more active communication sessions controlled by the respective communication session server or indicate that such communication sessions currently do not exist, by the communication session information server; and transmitting a first response, which indicates one or more active communication sessions controlled by the at least two communication session servers or indicates that such communication sessions currently do not exist, by the communication session information server.
Abstract:
A data transmission system includes a transmitter configured to transmit a data signal in the form of a data stream of data bursts in at least two transmission modes to a receiver, in the first mode a reference signal being transmitted by the transmitter in each data burst and being evaluated in the receiver, and in the second mode no reference signal being transmitted by the transmitter in each data burst. In the second mode, in place of the reference signal, additional redundancy data of the data signal are transmitted in each data burst.