An apparatus comprising means for performing: receiving, from a first client, a call request comprising address information for calling at least one second client, the address information comprising a Functional Alias, wherein the Functional Alias is activated by the at least one second client; in response to receiving the call request at the apparatus, sending, to a server, a request to re-solve the Functional Alias to at least one Mission Critical Push to Talk Identifier of the at least one second client that has activated the Functional Alias; receiving, at the apparatus from the server, the at least one Mission Critical Push to Talk Identifier of the at least one second client; sending, from the apparatus, a call request to the at least one second client using the at least one Mission Critical Push to Talk Identifier of the at least one second client.

In an example embodiment of present disclosure, a method and apparatus to exchange an SSRC value between a client and a server for implicit floor requests are disclosed. In an embodiment, the exchange of the SSRC value between the client and the server for implicit floor requests is being done with Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of Session Description Protocol (SDP). In an embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of SDP. In an embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit/Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in SSRC and FMTP media attribute of SDP.

In an example embodiment of present disclosure, a method and apparatus to exchange an SSRC value between a client and a server for implicit floor requests are disclosed. In an embodiment, the exchange of the SSRC value between the client and the server for implicit floor requests is being done with Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of Session Description Protocol (SDP). In an embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of SDP. In an embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit/Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in SSRC and FMTP media attribute of SDP.

In accordance with one or more embodiments, aspects of the disclosure provide efficient, effective, and convenient ways of uploading and authenticating content. In particular, a user device may receive validating information from a wireless networking device. The user or client device may record a content item, and may insert a validation tag based on the validating information. The user or client device may then send the content item to the wireless networking device. The wireless networking device may receive the content item at a first location and may determine the validity of the content item based on the validating information. The user device may continually interact with wireless networking devices as it travels to continually upload content items while establishing the validity of the time and location of the content items.

This disclosure provides embedding a messaging channel directly into a media stream, where messages delivered via the embedded messaging channel are the extracted at a client media player. An advantage of embedding a message is that it can be done in a single ingest point and then passes transparently through a CDN architecture, effectively achieving message replication using the native CDN media delivery infrastructure.

A communication system provides multimedia communications within and between armored ground combat vehicles (GCVs). The system includes client computers within the armored GCVs providing distributed and interconnected multimedia communications among the client computers. The multimedia communication may include a one-to-one communication, a text communication to a group, an audio communication to a group, or a video communication to a group. Logic providing the distributed and interconnected multimedia communications is not located at a single client computer. The client computers display graphical user interfaces (GUIs) enabling soldiers to select parameters of the communication system with some GUIs providing presence discovery among the armored GCVs. One of the plurality of client computers acts as an origination station and other client computers may be configured as receiving communication station(s). The origination communication station may transmit digital communication data to the receiving communication station(s).

In accordance with one or more embodiments, aspects of the disclosure provide efficient, effective, and convenient ways of uploading and authenticating content. In particular, a user device may receive validating information from a wireless networking device. The user or client device may record a content item, and may insert a validation tag based on the validating information. The user or client device may then send the content item to the wireless networking device. The wireless networking device may receive the content item at a first location and may determine the validity of the content item based on the validating information. The user device may continually interact with wireless networking devices as it travels to continually upload content items while establishing the validity of the time and location of the content items.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Disclosed is a method for binding or unbinding a functional alias with at least one mission critical services (MCX) group in an MCX network, including creating or updating, by an MCX server, an association of a functional alias with the at least one MCX group when the SIP message request is received to create binding of the functional alias with at least one MCX group, or disassociating by the MCX server an association of the functional alias with the at least one MCX group when the SIP message request is received to remove the binding of the functional alias with the at least one MCX group, and sending, by the MCX server, an SIP message response to MCX client device confirming whether the creation or removal of binding of the functional alias with the at least one MCX group is successful or unsuccessful.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide a method for handling functional alias in a conference event package in a wireless network by a server. The method includes detecting a group call associated with a group in the wireless network. Further, the method includes providing a SIP NOTIFY message comprising an ID of each member of a plurality of members of the group, and an IE indicating the functional alias bound by each member of the plurality of members with the group. Further, the method includes sending the SIP NOTIFY message to a client device corresponding to each member of the plurality of members of the group.

A number of communications for transmitting update data from a control device to a client is decreased, and discrepancies in the content of the latest update data between the control device and the client are prevented. The control device has: an update data monitoring unit for monitoring the latest update data and monitoring whether there has been an update within a predetermined time thereafter; an update data confirmation unit which, if there has been no update in the predetermined time, transmits to the client a request to confirm an update data reception state; a reception state determination unit which, based on the update data reception state in the client and the latest update data, determines whether the client has received the latest update data; and a retransmission instructing unit which, if the client has not received the latest update data, re-transmits the latest update data to the client.