diff options
Diffstat (limited to 'doc/sequence_charts/mncc_call_fsm.msc')
| -rw-r--r-- | doc/sequence_charts/mncc_call_fsm.msc | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/doc/sequence_charts/mncc_call_fsm.msc b/doc/sequence_charts/mncc_call_fsm.msc new file mode 100644 index 000000000..4a14ff738 --- /dev/null +++ b/doc/sequence_charts/mncc_call_fsm.msc @@ -0,0 +1,104 @@ +msc { + hscale=3; + 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"]; + + msc1 note sipcon1 [label="MO call"]; + sipcon2 note msc2 [label="MT call"]; + + mncc1 abox mncc1 [label="MNCC_CALL_ST_NOT_STARTED"]; + msc1 rbox msc1 [label="mncc_outgoing_start()"]; + msc1 -> mncc1 [label="MNCC_CALL_EV_OUTGOING_START"]; + + mncc1 abox mncc1 [label="MNCC_CALL_ST_OUTGOING_WAIT_PROCEEDING"]; + mncc1 => sipcon1 [label="MNCC_SETUP_IND + \n callref, IMSI, called and calling number, SDP"]; + sipcon1 => sip [label="SIP INVITE + \n from, to, SDP"]; + sipcon1 <= sip [label="SIP 100 Trying"]; + mncc1 <= sipcon1 [label="MNCC_RTP_CREATE + \n callref"]; + mncc1 rbox mncc1 [label="mncc_rx_rtp_create()"]; + mncc1 => sipcon1 [label="MNCC_RTP_CREATE + \n callref, RTP IP address and port"]; + mncc1 <= sipcon1 [label="MNCC_CALL_PROC_REQ + \n callref, RTP IP address and port"]; + mncc1 abox mncc1 [label="MNCC_CALL_ST_OUTGOING_WAIT_COMPLETE"]; + + sip => sipcon2 [label="SIP INVITE + \n from, to, SDP"]; + sipcon2 => sip [label="SIP 100 Trying"]; + msc2 <= sipcon2 [label="MNCC_SETUP_REQ + \n callref, called and calling number + \n SDP"]; + mncc2 abox mncc2 [label="MNCC_CALL_ST_NOT_STARTED"]; + msc2 rbox msc2 [label="mncc_incoming_start()"]; + msc2 -> mncc2 [label="MNCC_CALL_EV_INCOMING_START"]; + mncc2 abox mncc2 [label="MNCC_CALL_ST_INCOMING_WAIT_COMPLETE"]; + mncc2 => sipcon2 [label="MNCC_CALL_CONF_IND + \n callref, bearer capabilities, cccap and IMSI, SDP?"]; + mncc2 <= sipcon2 [label="MNCC_RTP_CREATE + \n callref"]; + mncc2 rbox mncc2 [label="mncc_rx_rtp_create()"]; + mncc2 => sipcon2 [label="MNCC_RTP_CREATE + \n callref, RTP IP address and port, SDP?"]; + mncc2 => sipcon2 [label="MNCC_ALERT_IND + \n callref"]; + sipcon2 => sip [label="SIP 180 Ringing + \n SDP"]; + + sipcon1 <= sip [label="SIP 180 Ringing + \n SDP"]; + mncc1 <= sipcon1 [label="MNCC_ALERT_REQ + \n callref and progress"]; + sipcon1 => sip [label="SIP PRACK 180 Ringing"]; + sipcon1 <= sip [label="SIP PRACK 200"]; + + mncc1 <= sipcon1 [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()"]; + + mncc2 => sipcon2 [label="MNCC_SETUP_CNF + \n callref, imsi and connected number, SDP?"]; + sipcon2 => sip [label="SIP 200 OK + \n SDP"]; + mncc2 <= sipcon2 [label="MNCC_RTP_CONNECT + \n callref, RTP IP and port"]; + mncc2 rbox mncc2 [label="mncc_rx_rtp_connect()"]; + mncc2 <= sipcon2 [label="MNCC_SETUP_COMPL_REQ + \n callref"]; + mncc2 abox mncc2 [label="MNCC_CALL_ST_TALKING"]; + + sipcon1 <= sip [label="SIP 200 OK INVITE"]; + mncc1 <= sipcon1 [label="MNCC_SETUP_RSP + \n callref"]; + mncc1 => sipcon1 [label="MNCC_SETUP_COMPL_IND + \n callref"]; + mncc1 abox mncc1 [label="MNCC_CALL_ST_TALKING"]; + sipcon1 => sip [label="SIP ACK"]; + + ...; + ... [label="Call goes on for a while..."]; + ...; + + mncc1 rbox mncc1 [label="mncc_release()"]; + mncc1 => sipcon1 [label="MNCC_DISC_IND + \n callref and cause"]; + mncc1 abox mncc1 [label="MNCC_CALL_ST_WAIT_RELEASE_ACK"]; + sipcon1 => sip [label="SIP BYE"]; + sipcon1 <= sip [label="SIP 200 OK"]; + mncc1 <= sipcon1 [label="MNCC_REL_REQ + \n callref and cause"]; + + sip => sipcon2 [label="SIP BYE"]; + sip <= sipcon2 [label="SIP 200 OK"]; + mncc2 <= sipcon2 [label="MNCC_DISC_REQ + \n callref and cause"]; + mncc2 => sipcon2 [label="MNCC_REL_IND + \n callref and cause"]; + mncc2 abox mncc2 [label="terminated"]; + + mncc1 => sipcon1 [label="MNCC_REL_CNF + \n callref"]; + mncc1 abox mncc1 [label="terminated"]; +} |