85 lines
2.9 KiB
Plaintext
85 lines
2.9 KiB
Plaintext
msc {
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hscale=2;
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msc1[label="osmo-msc"], mncc1[label="MNCC FSM"], pbx[label="MNCC server (osmo-sip-connector)"], mncc2[label="MNCC FSM"], msc2[label="osmo-msc"];
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mncc1 note mncc1 [label="The typical progression of an outgoing call, i.e. a call initiated by osmo-msc, as
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implemented in mncc_fsm.h, mncc_fsm.c"];
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mncc2 note mncc2 [label="The typical progression of an incoming call, i.e. a call initiated by the PBX, as
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implemented in mncc_fsm.h, mncc_fsm.c"];
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mncc1 abox mncc1 [label="MNCC_ST_NOT_STARTED"];
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msc1 rbox msc1 [label="mncc_outgoing_start()"];
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msc1 -> mncc1 [label="MNCC_EV_OUTGOING_START"];
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mncc1 abox mncc1 [label="MNCC_ST_OUTGOING_WAIT_PROCEEDING"];
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mncc1 => pbx [label="MNCC_SETUP_IND
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\n callref, IMSI, called and calling number"];
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mncc1 <= pbx [label="MNCC_RTP_CREATE
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\n callref"];
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mncc1 rbox mncc1 [label="mncc_rx_rtp_create()"];
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mncc1 => pbx [label="MNCC_RTP_CREATE
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\n callref, RTP IP address and port"];
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mncc1 <= pbx [label="MNCC_CALL_PROC_REQ
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\n callref, RTP IP address and port"];
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mncc1 abox mncc1 [label="MNCC_ST_OUTGOING_WAIT_COMPLETE"];
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msc2 <= pbx [label="MNCC_SETUP_REQ
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\n callref, called and calling number"];
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mncc2 abox mncc2 [label="MNCC_ST_NOT_STARTED"];
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msc2 rbox msc2 [label="mncc_incoming_start()"];
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msc2 -> mncc2 [label="MNCC_EV_INCOMING_START"];
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mncc2 abox mncc2 [label="MNCC_ST_INCOMING_WAIT_COMPLETE"];
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mncc2 => pbx [label="MNCC_CALL_CONF_IND
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\n callref, bearer capabilities, cccap and IMSI"];
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mncc2 <= pbx [label="MNCC_RTP_CREATE
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\n callref"];
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mncc2 rbox mncc2 [label="mncc_rx_rtp_create()"];
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mncc2 => pbx [label="MNCC_RTP_CREATE
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\n callref, RTP IP address and port"];
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mncc2 => pbx [label="MNCC_ALERT_IND
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\n callref"];
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mncc1 <= pbx [label="MNCC_ALERT_REQ
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\n callref and progress"];
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mncc2 => pbx [label="MNCC_SETUP_CNF
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\n callref, imsi and connected number"];
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mncc2 <= pbx [label="MNCC_RTP_CONNECT
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\n callref, RTP IP and port"];
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mncc2 rbox mncc2 [label="mncc_rx_rtp_connect()"];
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mncc2 <= pbx [label="MNCC_SETUP_COMPL_REQ
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\n callref"];
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mncc2 abox mncc2 [label="MNCC_ST_TALKING"];
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mncc1 <= pbx [label="MNCC_RTP_CONNECT
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\n callref, RTP IP and port"];
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mncc1 rbox mncc1 [label="mncc_rx_rtp_connect()"];
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msc1 <- mncc1 [label="rtp_stream_set_remote_addr()"];
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mncc1 <= pbx [label="MNCC_SETUP_RSP
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\n callref"];
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mncc1 => pbx [label="MNCC_SETUP_COMPL_IND
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\n callref"];
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mncc1 abox mncc1 [label="MNCC_ST_TALKING"];
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...;
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... [label="Call goes on for a while..."];
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...;
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mncc1 rbox mncc1 [label="mncc_release()"];
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mncc1 => pbx [label="MNCC_DISC_IND
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\n callref and cause"];
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mncc1 abox mncc1 [label="MNCC_ST_WAIT_RELEASE_ACK"];
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mncc1 <= pbx [label="MNCC_REL_REQ
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\n callref and cause"];
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mncc2 <= pbx [label="MNCC_DISC_REQ
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\n callref and cause"];
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mncc2 => pbx [label="MNCC_REL_IND
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\n callref and cause"];
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mncc2 abox mncc2 [label="terminated"];
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mncc1 => pbx [label="MNCC_REL_CNF
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\n callref"];
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mncc1 abox mncc1 [label="terminated"];
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}
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