The ISDN User Part or ISUP is part of the Signalling System No. 7 (SS7) which is used to set up telephone calls in the public switched ... ... <看更多>
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The ISDN User Part or ISUP is part of the Signalling System No. 7 (SS7) which is used to set up telephone calls in the public switched ... ... <看更多>
+// Message type passed to add_sdp function for SIP-I ISUP ... + ISUP Cause value SIP response ... + ast_log(LOG_DEBUG, "Sending ISUP ANM on 200 OK\n");. ... <看更多>