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Diffstat (limited to 'doc/sequence_charts/mncc_fsm.msc')
| -rw-r--r-- | doc/sequence_charts/mncc_fsm.msc | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/doc/sequence_charts/mncc_fsm.msc b/doc/sequence_charts/mncc_fsm.msc new file mode 100644 index 000000000..ae5e0a211 --- /dev/null +++ b/doc/sequence_charts/mncc_fsm.msc @@ -0,0 +1,84 @@ +msc { + hscale=2; + msc1[label="osmo-msc"], mncc1[label="MNCC FSM"], pbx[label="MNCC server (osmo-sip-connector)"], mncc2[label="MNCC FSM"], msc2[label="osmo-msc"]; + + mncc1 note mncc1 [label="The typical progression of an outgoing call, i.e. a call initiated by osmo-msc, as + implemented in mncc_fsm.h, mncc_fsm.c"]; + mncc2 note mncc2 [label="The typical progression of an incoming call, i.e. a call initiated by the PBX, as + implemented in mncc_fsm.h, mncc_fsm.c"]; + + mncc1 abox mncc1 [label="MNCC_ST_NOT_STARTED"]; + msc1 rbox msc1 [label="mncc_outgoing_start()"]; + msc1 -> mncc1 [label="MNCC_EV_OUTGOING_START"]; + + mncc1 abox mncc1 [label="MNCC_ST_OUTGOING_WAIT_PROCEEDING"]; + mncc1 => pbx [label="MNCC_SETUP_IND + \n callref, IMSI, called and calling number"]; + mncc1 <= pbx [label="MNCC_RTP_CREATE + \n callref"]; + mncc1 rbox mncc1 [label="mncc_rx_rtp_create()"]; + mncc1 => pbx [label="MNCC_RTP_CREATE + \n callref, RTP IP address and port"]; + mncc1 <= pbx [label="MNCC_CALL_PROC_REQ + \n callref, RTP IP address and port"]; + mncc1 abox mncc1 [label="MNCC_ST_OUTGOING_WAIT_COMPLETE"]; + + msc2 <= pbx [label="MNCC_SETUP_REQ + \n callref, called and calling number"]; + mncc2 abox mncc2 [label="MNCC_ST_NOT_STARTED"]; + msc2 rbox msc2 [label="mncc_incoming_start()"]; + msc2 -> mncc2 [label="MNCC_EV_INCOMING_START"]; + mncc2 abox mncc2 [label="MNCC_ST_INCOMING_WAIT_COMPLETE"]; + mncc2 => pbx [label="MNCC_CALL_CONF_IND + \n callref, bearer capabilities, cccap and IMSI"]; + mncc2 <= pbx [label="MNCC_RTP_CREATE + \n callref"]; + mncc2 rbox mncc2 [label="mncc_rx_rtp_create()"]; + mncc2 => pbx [label="MNCC_RTP_CREATE + \n callref, RTP IP address and port"]; + mncc2 => pbx [label="MNCC_ALERT_IND + \n callref"]; + + mncc1 <= pbx [label="MNCC_ALERT_REQ + \n callref and progress"]; + + mncc2 => pbx [label="MNCC_SETUP_CNF + \n callref, imsi and connected number"]; + mncc2 <= pbx [label="MNCC_RTP_CONNECT + \n callref, RTP IP and port"]; + mncc2 rbox mncc2 [label="mncc_rx_rtp_connect()"]; + mncc2 <= pbx [label="MNCC_SETUP_COMPL_REQ + \n callref"]; + mncc2 abox mncc2 [label="MNCC_ST_TALKING"]; + + mncc1 <= pbx [label="MNCC_RTP_CONNECT + \n callref, RTP IP and port"]; + mncc1 rbox mncc1 [label="mncc_rx_rtp_connect()"]; + msc1 <- mncc1 [label="rtp_stream_set_remote_addr()"]; + mncc1 <= pbx [label="MNCC_SETUP_RSP + \n callref"]; + mncc1 => pbx [label="MNCC_SETUP_COMPL_IND + \n callref"]; + mncc1 abox mncc1 [label="MNCC_ST_TALKING"]; + + ...; + ... [label="Call goes on for a while..."]; + ...; + + mncc1 rbox mncc1 [label="mncc_release()"]; + mncc1 => pbx [label="MNCC_DISC_IND + \n callref and cause"]; + mncc1 abox mncc1 [label="MNCC_ST_WAIT_RELEASE_ACK"]; + mncc1 <= pbx [label="MNCC_REL_REQ + \n callref and cause"]; + + mncc2 <= pbx [label="MNCC_DISC_REQ + \n callref and cause"]; + mncc2 => pbx [label="MNCC_REL_IND + \n callref and cause"]; + mncc2 abox mncc2 [label="terminated"]; + + mncc1 => pbx [label="MNCC_REL_CNF + \n callref"]; + mncc1 abox mncc1 [label="terminated"]; +} |