ENRICHMENT OF THE SIGNALLING IN A COMMUNICATION SESSION OF PUSH TO TALK TYPE BY INSERTING A BUSINESS CARD

摘要

Signalling protocol of SIP type for mobile communication network (N), comprising an invitation signalling message (M1), "INVITE", intended to establish a communication session of "Push to Talk" type between a calling communication client (A) and one or more called communication clients (B, C) and containing the logical address of the calling communication client and an address of the called communication client or clients. The protocol is characterized in that the invitation signalling message (M1) furthermore contains a business card associated with a user of the calling communication client (A).