105 lines
3.6 KiB
Plaintext
105 lines
3.6 KiB
Plaintext
msc {
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hscale=3;
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msc1[label="osmo-msc"], mncc1[label="MNCC FSM\n(osmo-msc mncc_call.c)"], sipcon1[label="osmo-sip-connector"], sip[label="PBX"], sipcon2[label="osmo-sip-connector"], mncc2[label="MNCC FSM\n(osmo-msc mncc_call.c)"], msc2[label="osmo-msc"];
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msc1 note sipcon1 [label="MO call"];
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sipcon2 note msc2 [label="MT call"];
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mncc1 abox mncc1 [label="MNCC_CALL_ST_NOT_STARTED"];
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msc1 rbox msc1 [label="mncc_outgoing_start()"];
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msc1 -> mncc1 [label="MNCC_CALL_EV_OUTGOING_START"];
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mncc1 abox mncc1 [label="MNCC_CALL_ST_OUTGOING_WAIT_PROCEEDING"];
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mncc1 => sipcon1 [label="MNCC_SETUP_IND
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\n callref, IMSI, called and calling number, SDP"];
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sipcon1 => sip [label="SIP INVITE
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\n from, to, SDP"];
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sipcon1 <= sip [label="SIP 100 Trying"];
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mncc1 <= sipcon1 [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 => sipcon1 [label="MNCC_RTP_CREATE
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\n callref, RTP IP address and port"];
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mncc1 <= sipcon1 [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_CALL_ST_OUTGOING_WAIT_COMPLETE"];
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sip => sipcon2 [label="SIP INVITE
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\n from, to, SDP"];
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sipcon2 => sip [label="SIP 100 Trying"];
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msc2 <= sipcon2 [label="MNCC_SETUP_REQ
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\n callref, called and calling number
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\n SDP"];
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mncc2 abox mncc2 [label="MNCC_CALL_ST_NOT_STARTED"];
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msc2 rbox msc2 [label="mncc_incoming_start()"];
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msc2 -> mncc2 [label="MNCC_CALL_EV_INCOMING_START"];
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mncc2 abox mncc2 [label="MNCC_CALL_ST_INCOMING_WAIT_COMPLETE"];
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mncc2 => sipcon2 [label="MNCC_CALL_CONF_IND
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\n callref, bearer capabilities, cccap and IMSI, SDP?"];
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mncc2 <= sipcon2 [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 => sipcon2 [label="MNCC_RTP_CREATE
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\n callref, RTP IP address and port, SDP?"];
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mncc2 => sipcon2 [label="MNCC_ALERT_IND
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\n callref"];
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sipcon2 => sip [label="SIP 180 Ringing
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\n SDP"];
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sipcon1 <= sip [label="SIP 180 Ringing
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\n SDP"];
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mncc1 <= sipcon1 [label="MNCC_ALERT_REQ
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\n callref and progress"];
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sipcon1 => sip [label="SIP PRACK 180 Ringing"];
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sipcon1 <= sip [label="SIP PRACK 200"];
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mncc1 <= sipcon1 [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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mncc2 => sipcon2 [label="MNCC_SETUP_CNF
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\n callref, imsi and connected number, SDP?"];
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sipcon2 => sip [label="SIP 200 OK
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\n SDP"];
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mncc2 <= sipcon2 [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 <= sipcon2 [label="MNCC_SETUP_COMPL_REQ
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\n callref"];
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mncc2 abox mncc2 [label="MNCC_CALL_ST_TALKING"];
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sipcon1 <= sip [label="SIP 200 OK INVITE"];
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mncc1 <= sipcon1 [label="MNCC_SETUP_RSP
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\n callref"];
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mncc1 => sipcon1 [label="MNCC_SETUP_COMPL_IND
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\n callref"];
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mncc1 abox mncc1 [label="MNCC_CALL_ST_TALKING"];
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sipcon1 => sip [label="SIP ACK"];
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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 => sipcon1 [label="MNCC_DISC_IND
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\n callref and cause"];
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mncc1 abox mncc1 [label="MNCC_CALL_ST_WAIT_RELEASE_ACK"];
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sipcon1 => sip [label="SIP BYE"];
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sipcon1 <= sip [label="SIP 200 OK"];
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mncc1 <= sipcon1 [label="MNCC_REL_REQ
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\n callref and cause"];
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sip => sipcon2 [label="SIP BYE"];
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sip <= sipcon2 [label="SIP 200 OK"];
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mncc2 <= sipcon2 [label="MNCC_DISC_REQ
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\n callref and cause"];
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mncc2 => sipcon2 [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 => sipcon1 [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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