Hi,I notice that the cdr is less than my expect.So I look up the logs of freeswitch,and I find some call did not get into CS_DESTROY state,the two legs of the call is below: fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.480500 [NOTICE] switch_channel.c:1053 New Channel sofia/internal/4000001234@sip.whoknowme.cn [4d57ac06-52fa-4ef5-956c-c1cc1db8ad40] fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.600479 [INFO] mod_dialplan_xml.c:558 Processing GY%B3%E0%C1%FA <4000001234>->018876590253 in context default fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [WARNING] switch_core_media.c:2548 NO candidate ACL defined, Defaulting to wan.auto fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2586 Save audio Candidate cid: 1 proto: udp type: host addr: 192.168.155.1:56436 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2586 Save audio Candidate cid: 2 proto: udp type: host addr: 192.168.155.1:56436 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2586 Save audio Candidate cid: 1 proto: udp type: host addr: 192.168.1.2:56437 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2586 Save audio Candidate cid: 2 proto: udp type: host addr: 192.168.1.2:56437 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2581 Choose audio Candidate cid: 1 proto: udp type: srflx addr: 120.32.104.13:9115 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2581 Choose audio Candidate cid: 2 proto: udp type: srflx addr: 120.32.104.13:9115 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2586 Save audio Candidate cid: 1 proto: udp type: srflx addr: 120.32.104.13:9117 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2586 Save audio Candidate cid: 2 proto: udp type: srflx addr: 120.32.104.13:9117 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2710 setting remote audio ice addr to 120.32.104.13:9115 based on candidate fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_core_media.c:2730 setting remote rtcp audio addr to 120.32.104.13:9115 based on candidate fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [INFO] switch_core_media.c:5016 Activating Audio ICE fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [NOTICE] switch_rtp.c:3775 Activating RTP audio ICE: gdzTwX2PR4YWwRvr:Qr3qnaiYtrc9YirV 120.32.104.13:9115 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [INFO] switch_core_media.c:5059 Activating RTCP PORT 9115 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.780497 [INFO] switch_core_media.c:5067 Skipping RTCP ICE (Same as RTP) fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.830486 [INFO] switch_rtp.c:3151 Activating Audio Secure RTP SEND fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.840496 [INFO] switch_rtp.c:3129 Activating Audio Secure RTP RECV fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:50.840496 [NOTICE] sofia_media.c:92 Pre-Answer sofia/internal/4000001234@sip.whoknowme.cn! fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:51.040498 [NOTICE] switch_rtp.c:1132 Auto Changing stun/rtp/dtls port from 120.32.104.13:9115 to 120.32.104.13:9117 fs.log.2014-05-28-00-00-01.1:4d57ac06-52fa-4ef5-956c-c1cc1db8ad40 2014-05-27 19:02:58.720594 [NOTICE] switch_ivr_bridge.c:496 Channel [sofia/internal/4000001234@sip.whoknowme.cn] has been answered fs.log.2014-05-28-00-00-01.1:2127f5f1-fa2d-469d-ad0a-8df709d484ec 2014-05-27 19:02:50.860494 [NOTICE] switch_channel.c:1053 New Channel sofia/internal/018876590253 [2127f5f1-fa2d-469d-ad0a-8df709d484ec] fs.log.2014-05-28-00-00-01.1:2127f5f1-fa2d-469d-ad0a-8df709d484ec 2014-05-27 19:02:51.570502 [NOTICE] sofia_media.c:92 Pre-Answer sofia/internal/018876590253! fs.log.2014-05-28-00-00-01.1:2127f5f1-fa2d-469d-ad0a-8df709d484ec 2014-05-27 19:02:58.700582 [NOTICE] sofia.c:6955 Channel [sofia/internal/018876590253] has been answered fs.log.2014-05-28-00-00-01.1:2127f5f1-fa2d-469d-ad0a-8df709d484ec 2014-05-27 19:04:32.330784 [WARNING] sofia.c:8096 IGNORE INFO DTMF(6) (This channel was not configured to use INFO DTMF!) Is this may be a bug?