| 摘要 |
The invention relates to a signaling method for the transmission of signaling information within the frame of a voice transmission or multimedia transmission via an IP network of the SIP-T type, which is connected to at least one public telecommunication network, whereby a first ISUP message, coded in a national format and a second ISUP message, coded in the international ITU-T format, are transmitted with the SIP-T messages.
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