Communications channels between systems can be managed such that unnecessary use of the channels is limited. A computer system can initiate a request to establish communications channels between a client device and the computer system. A notification is sent to the client device, which causes the client device to prompt the user to either accept the request or reschedule the requested establishing of the communications channel.

According to various embodiments, a collaboration system and methods are provided to enable consultants to efficiently collaborate with one another by engaging in system-facilitated voice consultations. As used herein, a voice consultation may generally refer to communications established between two or more users of the collaboration system. In general, the system and methods described herein provide the ability for users to establish voice consultations with other users at a mutually convenient time, whether or not there exists a prior relationship between the users. The system and methods automatically place a consultation call at a time requested by the caller and which the callee has previously announced as available. Called parties may determine whether to accept a consultation based on data that is visually perceptible with a mobile device at which the call is received.

The invention concerns a method for establishing a telecommunication connection between a calling subscriber (1) and a target subscriber (5), in which a calling terminal (R) of the calling subscriber (1) and a target terminal (Z) of the target subscriber (5) are assigned to a switching unit (100) and the calling subscriber (1) enters a callback request (CCBS-REQ, CCNR-REQ) in the switching unit (100) if the target terminal (Z) is busy or cannot be reached when a first call is made from the calling terminal (R) to the target terminal (Z), in which configuration data regarding the accessibility of the target subscriber (5) for a callback are entered into the switching unit (100). Then the time is set for the switching unit (100) to make the pending callback (RC) to the calling subscriber (1) in order to generate a second call to the target subscriber (5) by processing the configuration data concerning the accessibility of the target subscriber (5) for a callback, at a time when the target subscriber (5) is reachable for a callback. Next, the switching unit (100) makes the pending callback (RC) to the calling subscriber (1) at the set time.

The invention concerns a method for establishing a telecommunication connection between a calling subscriber (1) and a target subscriber (5), in which a calling terminal (R) of the calling subscriber (1) and a target terminal (Z) of the target subscriber (5) are assigned to a switching unit (100) and the calling subscriber (1) enters a callback request (CCBS-REQ, CCNR-REQ) in the switching unit (100) if the target terminal (Z) is busy or cannot be reached when a first call is made from the calling terminal (R) to the target terminal (Z), in which configuration data regarding the accessibility of the target subscriber (5) for a callback are entered into the switching unit (100). Then the time is set for the switching unit (100) to make the pending callback (RC) to the calling subscriber (1) in order to generate a second call to the target subscriber (5) by processing the configuration data concerning the accessibility of the target subscriber (5) for a callback, at a time when the target subscriber (5) is reachable for a callback. Next, the switching unit (100) makes the pending callback (RC) to the calling subscriber (1) at the set time.

Terminal information of a mobile terminal via the Internet is transmitted, and an outgoing reservation is made. Along with this, terminal information of a mobile terminal is transmitted from a telephone network to a telephone exchange apparatus of a company. The telephone exchange apparatus checks the terminal information of a call originator mobile terminal for which an outgoing call is reserved via the Internet against call originating terminal information arrived via the telephone network, and when the call originator terminal information arrived via the telephone network can be authenticated, the reserved call destination terminal is called with the company exchange apparatus as a call originator. When a user calls a customer from his/her mobile terminal phone, a telephone number of the personal mobile terminal is not displayed on a call destination terminal. Further, no troublesome operation for callback is required, and the communication cost charged to a company is reduced.

Systems and methods for video visitation and calling using Rich Communication Services (RCS) are described. In some embodiments, a method may include: receiving a text message, via a native RCS client of a non-resident device operated by a non-resident of a correctional facility, indicating that a scheduled video visitation session with a resident of the correctional facility is available to be established; and establishing the scheduled video visitation session between the resident and the non-resident, at least in part, via the native RCS client.

The invention concerns a method for establishing a telecommunication connection between a calling subscriber (1) and a target subscriber (5), in which a calling terminal (R) of the calling subscriber (1) and a target terminal (Z) of the target subscriber (5) are assigned to a switching unit (100) and the calling subscriber (1) enters a callback request (CCBS-REQ, CCNR-REQ) in the switching unit (100) if the target terminal (Z) is busy or cannot be reached when a first call is made from the calling terminal (R) to the target terminal (Z), in which configuration data regarding the accessibility of the target subscriber (5) for a callback are entered into the switching unit (100). Then the time is set for the switching unit (100) to make the pending callback (RC) to the calling subscriber (1) in order to generate a second call to the target subscriber (5) by processing the configuration data concerning the accessibility of the target subscriber (5) for a callback, at a time when the target subscriber (5) is reachable for a callback. Next, the switching unit (100) makes the pending callback (RC) to the calling subscriber (1) at the set time.

The invention concerns a method for establishing a telecommunication connection between a calling subscriber (1) and a target subscriber (5), in which a calling terminal (R) of the calling subscriber (1) and a target terminal (Z) of the target subscriber (5) are assigned to a switching unit (100) and the calling subscriber (1) enters a callback request (CCBS-REQ, CCNR-REQ) in the switching unit (100) if the target terminal (Z) is busy or cannot be reached when a first call is made from the calling terminal (R) to the target terminal (Z), in which configuration data regarding the accessibility of the target subscriber (5) for a callback are entered into the switching unit (100). Then the time is set for the switching unit (100) to make the pending callback (RC) to the calling subscriber (1) in order to generate a second call to the target subscriber (5) by processing the configuration data concerning the accessibility of the target subscriber (5) for a callback, at a time when the target subscriber (5) is reachable for a callback. Next, the switching unit (100) makes the pending callback (RC) to the calling subscriber (1) at the set time.

The present invention relates to a method and a network device for setting up a voice call. The invention further relates to computer programs and computer program products comprising computer readable medium having the computer programs stored thereon. In a first aspect of the invention a method of setting up a voice call between a first party and a second party is provided. The method comprises acquiring information pertaining to at least one detected state of at least one of the first and the second party, determining whether the acquired information pertaining to the at least one detected state of the at least one of the first and the second party satisfies at least one criterion of a scheduling policy for setting up the voice call; and if so causing the voice call to be set up between the first party and the second party.

The present invention relates to a method and a network device for setting up a voice call. The invention further relates to computer programs and computer program products comprising computer readable medium having the computer programs stored thereon. In a first aspect of the invention a method of setting up a voice call between a first party and a second party is provided. The method comprises acquiring information pertaining to at least one detected state of at least one of the first and the second party, determining whether the acquired information pertaining to the at least one detected state of the at least one of the first and the second party satisfies at least one criterion of a scheduling policy for setting up the voice call; and if so causing the voice call to be set up between the first party and the second party.