| 摘要 |
<p>The client (A) has a switching unit switching between transmission and reception modes in which a microphone is active or not, respectively, when a push to talk over cellular (PoC) communication session is established. A display unit e.g. screen, displays information based on data contained in invite type signaling massages (MI) e.g. session initiation protocol (SIP) request. A memory stores a business card e.g. private business card, associated to a user of the client and transmitted by the messages towards other communication clients (B, C). The unit completely/partially displays the card. Independent claims are also included for the following: (1) a signaling protocol for a mobile communication network (2) a software product comprising codes to implement a signaling protocol.</p> |
