486 Busy Here linphone

[hieujames]

I am dealing with push wake up service and use linphone sdk 4.4.0 very well. But the thing is, when I turn on callkit in the background and send registration to pbx and then receive invite, it says busy here error while user can't accept reply so linphone can check call-id and send 200OK to the switchboard

Logged:

2021-11-19 16:56:20.646104+0700 mifone[10737:1103557] [Message] INVITE sip:[email protected]:64522;pn-provider=apns;pn-prid=09C0CC02A6441E8DB873D4BD4B37B6DD85191B83F4391CAA76E8D9EB716587E8;pn-param=mitek.mifone.phone.build;transport=udp SIP/2.0 2021-11-19 16:56:20.646226+0700 mifone[10737:1103557] [Message] Record-Route: sip:222.255.115.179:5566;r2=on;lr;ftag=as4d4ad262;did=627.9c4da4b2 2021-11-19 16:56:20.646334+0700 mifone[10737:1103557] [Message] Record-Route: sip:10.10.105.91;r2=on;lr;ftag=as4d4ad262;did=627.9c4da4b2 2021-11-19 16:56:20.646431+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 222.255.115.179:5566;branch=z9hG4bK6f59.a4499207.0 2021-11-19 16:56:20.646569+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 10.10.105.57:5060;received=10.10.105.57;branch=z9hG4bK32cfa9eb;rport=5060 2021-11-19 16:56:20.646673+0700 mifone[10737:1103557] [Message] Max-Forwards: 69 2021-11-19 16:56:20.646765+0700 mifone[10737:1103557] [Message] From: "Mitek 8160" sip:[email protected];tag=as4d4ad262 2021-11-19 16:56:20.646943+0700 mifone[10737:1103557] [Message] To: sip:[email protected]:5060 2021-11-19 16:56:20.647085+0700 mifone[10737:1103557] [Message] Contact: sip:[email protected]:5060 2021-11-19 16:56:20.647190+0700 mifone[10737:1103557] [Message] Call-ID: [email protected]:5060 2021-11-19 16:56:20.647285+0700 mifone[10737:1103557] [Message] CSeq: 102 INVITE 2021-11-19 16:56:20.647624+0700 mifone[10737:1103557] [Message] User-Agent: FPBX-15.0.16.38(15.7.2) 2021-11-19 16:56:20.647730+0700 mifone[10737:1103557] [Message] Date: Fri, 19 Nov 2021 09:56:14 GMT 2021-11-19 16:56:20.648010+0700 mifone[10737:1103557] [Message] Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE 2021-11-19 16:56:20.648111+0700 mifone[10737:1103557] [Message] Supported: replaces, timer 2021-11-19 16:56:20.648595+0700 mifone[10737:1103557] [Message] P-Asserted-Identity: "Mitek 8160" sip:[email protected] 2021-11-19 16:56:20.648783+0700 mifone[10737:1103557] [Message] Content-Type: application/sdp 2021-11-19 16:56:20.648882+0700 mifone[10737:1103557] [Message] Content-Length: 300 2021-11-19 16:56:20.649016+0700 mifone[10737:1103557] [Message] v=0 2021-11-19 16:56:20.649134+0700 mifone[10737:1103557] [Message] o=root 550629213 550629213 IN IP4 14.225.241.38 2021-11-19 16:56:20.649242+0700 mifone[10737:1103557] [Message] s=Asterisk PBX 15.7.2 2021-11-19 16:56:20.649781+0700 mifone[10737:1103557] [Message] c=IN IP4 14.225.241.38 2021-11-19 16:56:20.650012+0700 mifone[10737:1103557] [Message] t=0 0 2021-11-19 16:56:20.650137+0700 mifone[10737:1103557] [Message] m=audio 57282 RTP/AVP 0 8 3 101 2021-11-19 16:56:20.651012+0700 mifone[10737:1103557] [Message] a=maxptime:150 2021-11-19 16:56:20.651132+0700 mifone[10737:1103557] [Message] a=rtpmap:0 PCMU/8000 2021-11-19 16:56:20.651225+0700 mifone[10737:1103557] [Message] a=rtpmap:8 PCMA/8000 2021-11-19 16:56:20.651316+0700 mifone[10737:1103557] [Message] a=rtpmap:3 GSM/8000 2021-11-19 16:56:20.651453+0700 mifone[10737:1103557] [Message] a=rtpmap:101 telephone-event/8000 2021-11-19 16:56:20.651558+0700 mifone[10737:1103557] [Message] a=fmtp:101 0-16 2021-11-19 16:56:20.651651+0700 mifone[10737:1103557] [Message] a=sendrecv 2021-11-19 16:56:20.651744+0700 mifone[10737:1103557] [Message] a=rtcp:57283 2021-11-19 16:56:20.685390+0700 mifone[10737:1103557] [Message] channel [0x111708000] [1039] bytes parsed 2021-11-19 16:56:20.685567+0700 mifone[10737:1103557] [Message] channel [0x111708000] read [300] bytes of body from [sipproxy01-2020.mipbx.vn:5566] 2021-11-19 16:56:20.686507+0700 mifone[10737:1103557] [Message] Background task belle-sip transaction(0x283a94000) started. Unknown remaining time since application is not fully in background. 2021-11-19 16:56:20.686570+0700 mifone[10737:1103557] [Message] transaction [0x283a94000]: starting transaction background task with id=[60]. 2021-11-19 16:56:20.686766+0700 mifone[10737:1103557] [Message] Changing [server] [INVITE] transaction [0x283a94000], from state [INIT] to [PROCEEDING] 2021-11-19 16:56:20.687091+0700 mifone[10737:1103557] [Message] channel [0x111708000]: message sent to [UDP://sipproxy01-2020.mipbx.vn:5566], size: [353] bytes 2021-11-19 16:56:20.687125+0700 mifone[10737:1103557] [Message] SIP/2.0 100 Trying 2021-11-19 16:56:20.687148+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 222.255.115.179:5566;branch=z9hG4bK6f59.a4499207.0 2021-11-19 16:56:20.687170+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 10.10.105.57:5060;received=10.10.105.57;branch=z9hG4bK32cfa9eb;rport=5060 2021-11-19 16:56:20.687193+0700 mifone[10737:1103557] [Message] From: "Mitek 8160" sip:[email protected];tag=as4d4ad262 2021-11-19 16:56:20.687215+0700 mifone[10737:1103557] [Message] To: sip:[email protected]:5060 2021-11-19 16:56:20.687236+0700 mifone[10737:1103557] [Message] Call-ID: [email protected]:5060 2021-11-19 16:56:20.687257+0700 mifone[10737:1103557] [Message] CSeq: 102 INVITE 2021-11-19 16:56:20.687331+0700 mifone[10737:1103557] [Message] New server dialog [0x28302da40] , local tag [~bEJ5BC], remote tag [as4d4ad262] 2021-11-19 16:56:20.687387+0700 mifone[10737:1103557] [Message] op [0x10d5b5610] : set_or_update_dialog() current=[0x0] new=[0x28302da40] 2021-11-19 16:56:20.687495+0700 mifone[10737:1103557] [Message] New incoming call from ["Mitek 8160" sip:[email protected]] to [sip:[email protected]:5060] 2021-11-19 16:56:20.687952+0700 mifone[10737:1103557] [Message] Found payload PCMU/8000 fmtp= 2021-11-19 16:56:20.688001+0700 mifone[10737:1103557] [Message] Found payload PCMA/8000 fmtp= 2021-11-19 16:56:20.688041+0700 mifone[10737:1103557] [Message] Found payload GSM/8000 fmtp= 2021-11-19 16:56:20.688080+0700 mifone[10737:1103557] [Message] Found payload telephone-event/8000 fmtp=0-16 2021-11-19 16:56:20.688189+0700 mifone[10737:1103557] [Message] New MediaSession [0x282b73438] initialized (LinphoneCore version: 4.4.0) 2021-11-19 16:56:20.688292+0700 mifone[10737:1103557] [Message] Found media local-ip from signaling. 2021-11-19 16:56:20.688365+0700 mifone[10737:1103557] [Message] Port 7296 randomly taken from range [ 7200 , 7299] 2021-11-19 16:56:20.688410+0700 mifone[10737:1103557] [Message] stream#0 [audio] in state [Stopped]: multicast role is [inactive] 2021-11-19 16:56:20.688553+0700 mifone[10737:1103557] [Message] RtpSession bound to [::0] ports [7296] [7297] 2021-11-19 16:56:20.688634+0700 mifone[10737:1103557] [Message] Configured srtp crypto suite: AES_CM_128_HMAC_SHA1_80 2021-11-19 16:56:20.688678+0700 mifone[10737:1103557] [Message] Configured srtp crypto suite: AES_CM_128_HMAC_SHA1_32 2021-11-19 16:56:20.688719+0700 mifone[10737:1103557] [Message] Configured srtp crypto suite: AES_256_CM_HMAC_SHA1_80 2021-11-19 16:56:20.688758+0700 mifone[10737:1103557] [Message] Configured srtp crypto suite: AES_256_CM_HMAC_SHA1_32 2021-11-19 16:56:20.688803+0700 mifone[10737:1103557] [Message] Creating ZRTP engine on rtp session [0x10d8cee00] ssrc 0x93a938a 2021-11-19 16:56:20.689138+0700 mifone[10737:1103557] [Message] rtp_session_enable_network_simulation:DISABLING NETWORK SIMULATION 2021-11-19 16:56:20.689204+0700 mifone[10737:1103557] [Message] Setting DSCP to 46 for MSAudio stream. 2021-11-19 16:56:20.689249+0700 mifone[10737:1103557] [Message] Created stream#0 [audio] in state [Stopped] 2021-11-19 16:56:20.689297+0700 mifone[10737:1103557] [Message] Created new ICE check list 0x28302e670 for stream #0 2021-11-19 16:56:20.689338+0700 mifone[10737:1103557] [Warning] Fail to set IPv4 packet info on RTP socket: Invalid argument. 2021-11-19 16:56:20.689376+0700 mifone[10737:1103557] [Warning] Fail to set IPv4 packet info on RTCP socket: Invalid argument. 2021-11-19 16:56:20.689419+0700 mifone[10737:1103557] [Message] ICE state is IceStateInProgress for stream#0 [audio] in state [Stopped] 2021-11-19 16:56:20.689460+0700 mifone[10737:1103557] [Warning] Fail to set IPv4 packet info on RTP socket: Invalid argument. 2021-11-19 16:56:20.689500+0700 mifone[10737:1103557] [Warning] Fail to set IPv4 packet info on RTCP socket: Invalid argument. 2021-11-19 16:56:20.689541+0700 mifone[10737:1103557] [Message] ICE state is IceStateNotActivated for stream#0 [audio] in state [Stopped] 2021-11-19 16:56:20.689697+0700 mifone[10737:1103557] [Warning] Fail to set IPv4 packet info on RTP socket: Invalid argument. 2021-11-19 16:56:20.689740+0700 mifone[10737:1103557] [Warning] Fail to set IPv4 packet info on RTCP socket: Invalid argument. 2021-11-19 16:56:20.689781+0700 mifone[10737:1103557] [Message] ICE state is IceStateNotActivated for stream#0 [audio] in state [Stopped] 2021-11-19 16:56:20.689879+0700 mifone[10737:1103557] [Message] Doing SDP offer/answer process of type incoming 2021-11-19 16:56:20.689933+0700 mifone[10737:1103557] [Message] No match for GSM/8000/1 2021-11-19 16:56:20.690003+0700 mifone[10737:1103557] [Message] Linphone core [0x10d813200] notified [call_created] 2021-11-19 16:56:20.690351+0700 mifone[10737:1103557] [Message] Background task Liblinphone call notification started. Unknown remaining time since application is not fully in background. 2021-11-19 16:56:20.690403+0700 mifone[10737:1103557] [Message] Starting background task [97] with name: [Liblinphone call notification] and expiration of [30] 2021-11-19 16:56:20.690455+0700 mifone[10737:1103557] [Message] [ToneManager] [0x282b73438] state changed : [None, LinphoneCallIdle] 2021-11-19 16:56:20.690495+0700 mifone[10737:1103557] [Message] [ToneManager] add new session [0x282b73438] 2021-11-19 16:56:20.690533+0700 mifone[10737:1103557] [Message] [ToneManager] doStopToneToPlaySomethingElse 2021-11-19 16:56:20.690571+0700 mifone[10737:1103557] [Message] [ToneManager] doStartRingtone 2021-11-19 16:56:20.690624+0700 mifone[10737:1103557] [Message] linphone_ringtoneplayer_ios_start_with_cb: using ringtone /private/var/containers/Bundle/Application/56650669-ACB1-4BE8-89CB-E83D59A3E666/mifone.app/notes_of_the_optimistic.caf 2021-11-19 16:56:20.690663+0700 mifone[10737:1103557] [Warning] linphone_ringtoneplayer_ios_start_with_cb: a player is already instantiated, stopping it first. 2021-11-19 16:56:20.702270+0700 mifone[10737:1103557] [Message] CallSession [0x282b73438] moving from state LinphoneCallIdle to LinphoneCallIncomingReceived 2021-11-19 16:56:20.702615+0700 mifone[10737:1103557] [Message] Background task Liblinphone cpu lock started. Unknown remaining time since application is not fully in background. 2021-11-19 16:56:20.704467+0700 mifone[10737:1103557] [Message] Linphone core [0x10d813200] notified [call_state_changed] 2021-11-19 16:56:20.704543+0700 mifone[10737:1103557] [Message] Ending background task [97] with name: [Liblinphone call notification] 2021-11-19 16:56:20.704651+0700 mifone[10737:1103557] [Message] Contact has been fixed using proxy 2021-11-19 16:56:20.704863+0700 mifone[10737:1103557] [Message] channel [0x111708000]: message sent to [UDP://sipproxy01-2020.mipbx.vn:5566], size: [631] bytes 2021-11-19 16:56:20.704901+0700 mifone[10737:1103557] [Message] SIP/2.0 180 Ringing 2021-11-19 16:56:20.704925+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 222.255.115.179:5566;branch=z9hG4bK6f59.a4499207.0 2021-11-19 16:56:20.704949+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 10.10.105.57:5060;received=10.10.105.57;branch=z9hG4bK32cfa9eb;rport=5060 2021-11-19 16:56:20.704972+0700 mifone[10737:1103557] [Message] From: "Mitek 8160" sip:[email protected];tag=as4d4ad262 2021-11-19 16:56:20.704995+0700 mifone[10737:1103557] [Message] To: sip:[email protected]:5060;tag=~bEJ5BC 2021-11-19 16:56:20.705026+0700 mifone[10737:1103557] [Message] Call-ID: [email protected]:5060 2021-11-19 16:56:20.705047+0700 mifone[10737:1103557] [Message] CSeq: 102 INVITE 2021-11-19 16:56:20.705069+0700 mifone[10737:1103557] [Message] User-Agent: MifoneiOS/1.1.7 (IPhone 12 Max HJ) LinphoneSDK/4.4.0 2021-11-19 16:56:20.705093+0700 mifone[10737:1103557] [Message] Supported: replaces, outbound, gruu 2021-11-19 16:56:20.705200+0700 mifone[10737:1103557] [Message] Record-route: sip:222.255.115.179:5566;r2=on;lr;ftag=as4d4ad262;did=627.9c4da4b2 2021-11-19 16:56:20.705235+0700 mifone[10737:1103557] [Message] Record-route: sip:10.10.105.91;r2=on;lr;ftag=as4d4ad262;did=627.9c4da4b2 2021-11-19 16:56:20.705337+0700 mifone[10737:1103557] [Message] Dialog [0x28302da40]: now updated by transaction [0x283a94000]. 2021-11-19 16:56:20.705383+0700 mifone[10737:1103557] [Message] channel [0x111708000]: ending recv background task with id=[5f]. 2021-11-19 16:56:20.724861+0700 mifone[10737:1103557] [Message] Background task belle-sip recv channel started. Unknown remaining time since application is not fully in background. 2021-11-19 16:56:20.724943+0700 mifone[10737:1103557] [Message] channel [0x111708000]: starting recv background task with id=[63]. 2021-11-19 16:56:20.725051+0700 mifone[10737:1103557] [Message] channel [0x111708000]: received [1339] new bytes from [UDP://sipproxy01-2020.mipbx.vn:5566]: 2021-11-19 16:56:20.725075+0700 mifone[10737:1103557] [Message] INVITE sip:[email protected]:64522;pn-provider=apns;pn-prid=09C0CC02A6441E8DB873D4BD4B37B6DD85191B83F4391CAA76E8D9EB716587E8;pn-param=mitek.mifone.phone.build;transport=udp SIP/2.0 2021-11-19 16:56:20.725095+0700 mifone[10737:1103557] [Message] Record-Route: sip:222.255.115.179:5566;r2=on;lr;ftag=as4d4ad262;did=627.9c4da4b2 2021-11-19 16:56:20.725117+0700 mifone[10737:1103557] [Message] Record-Route: sip:10.10.105.91;r2=on;lr;ftag=as4d4ad262;did=627.9c4da4b2 2021-11-19 16:56:20.725134+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 222.255.115.179:5566;branch=z9hG4bK6f59.a4499207.1 2021-11-19 16:56:20.725151+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 10.10.105.57:5060;received=10.10.105.57;branch=z9hG4bK32cfa9eb;rport=5060 2021-11-19 16:56:20.725168+0700 mifone[10737:1103557] [Message] Max-Forwards: 69 2021-11-19 16:56:20.725186+0700 mifone[10737:1103557] [Message] From: "Mitek 8160" sip:[email protected];tag=as4d4ad262 2021-11-19 16:56:20.725261+0700 mifone[10737:1103557] [Message] To: sip:[email protected]:5060 2021-11-19 16:56:20.725322+0700 mifone[10737:1103557] [Message] Contact: sip:[email protected]:5060 2021-11-19 16:56:20.725388+0700 mifone[10737:1103557] [Message] Call-ID: [email protected]:5060 2021-11-19 16:56:20.725446+0700 mifone[10737:1103557] [Message] CSeq: 102 INVITE 2021-11-19 16:56:20.725509+0700 mifone[10737:1103557] [Message] User-Agent: FPBX-15.0.16.38(15.7.2) 2021-11-19 16:56:20.725602+0700 mifone[10737:1103557] [Message] Date: Fri, 19 Nov 2021 09:56:14 GMT 2021-11-19 16:56:20.725685+0700 mifone[10737:1103557] [Message] Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE 2021-11-19 16:56:20.725776+0700 mifone[10737:1103557] [Message] Supported: replaces, timer 2021-11-19 16:56:20.725892+0700 mifone[10737:1103557] [Message] P-Asserted-Identity: "Mitek 8160" sip:[email protected] 2021-11-19 16:56:20.726028+0700 mifone[10737:1103557] [Message] Content-Type: application/sdp 2021-11-19 16:56:20.726129+0700 mifone[10737:1103557] [Message] Content-Length: 300 2021-11-19 16:56:20.726251+0700 mifone[10737:1103557] [Message] v=0 2021-11-19 16:56:20.726309+0700 mifone[10737:1103557] [Message] o=root 550629213 550629213 IN IP4 14.225.241.38 2021-11-19 16:56:20.726398+0700 mifone[10737:1103557] [Message] s=Asterisk PBX 15.7.2 2021-11-19 16:56:20.726494+0700 mifone[10737:1103557] [Message] c=IN IP4 14.225.241.38 2021-11-19 16:56:20.726580+0700 mifone[10737:1103557] [Message] t=0 0 2021-11-19 16:56:20.726659+0700 mifone[10737:1103557] [Message] m=audio 57282 RTP/AVP 0 8 3 101 2021-11-19 16:56:20.726733+0700 mifone[10737:1103557] [Message] a=maxptime:150 2021-11-19 16:56:20.726836+0700 mifone[10737:1103557] [Message] a=rtpmap:0 PCMU/8000 2021-11-19 16:56:20.726962+0700 mifone[10737:1103557] [Message] a=rtpmap:8 PCMA/8000 2021-11-19 16:56:20.727050+0700 mifone[10737:1103557] [Message] a=rtpmap:3 GSM/8000 2021-11-19 16:56:20.727144+0700 mifone[10737:1103557] [Message] a=rtpmap:101 telephone-event/8000 2021-11-19 16:56:20.727254+0700 mifone[10737:1103557] [Message] a=fmtp:101 0-16 2021-11-19 16:56:20.727331+0700 mifone[10737:1103557] [Message] a=sendrecv 2021-11-19 16:56:20.727423+0700 mifone[10737:1103557] [Message] a=rtcp:57283 2021-11-19 16:56:20.741913+0700 mifone[10737:1103557] [Message] channel [0x111708000] [1039] bytes parsed 2021-11-19 16:56:20.742032+0700 mifone[10737:1103557] [Message] channel [0x111708000] read [300] bytes of body from [sipproxy01-2020.mipbx.vn:5566] 2021-11-19 16:56:20.742714+0700 mifone[10737:1103557] [Message] Background task belle-sip transaction(0x29ba98000) started. Unknown remaining time since application is not fully in background. 2021-11-19 16:56:20.742755+0700 mifone[10737:1103557] [Message] transaction [0x29ba98000]: starting transaction background task with id=[64]. 2021-11-19 16:56:20.742904+0700 mifone[10737:1103557] [Message] Changing [server] [INVITE] transaction [0x29ba98000], from state [INIT] to [PROCEEDING] 2021-11-19 16:56:20.743174+0700 mifone[10737:1103557] [Message] channel [0x111708000]: message sent to [UDP://sipproxy01-2020.mipbx.vn:5566], size: [353] bytes 2021-11-19 16:56:20.743196+0700 mifone[10737:1103557] [Message] SIP/2.0 100 Trying 2021-11-19 16:56:20.743210+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 222.255.115.179:5566;branch=z9hG4bK6f59.a4499207.1 2021-11-19 16:56:20.743224+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 10.10.105.57:5060;received=10.10.105.57;branch=z9hG4bK32cfa9eb;rport=5060 2021-11-19 16:56:20.743237+0700 mifone[10737:1103557] [Message] From: "Mitek 8160" sip:[email protected];tag=as4d4ad262 2021-11-19 16:56:20.743250+0700 mifone[10737:1103557] [Message] To: sip:[email protected]:5060 2021-11-19 16:56:20.743263+0700 mifone[10737:1103557] [Message] Call-ID: [email protected]:5060 2021-11-19 16:56:20.743280+0700 mifone[10737:1103557] [Message] CSeq: 102 INVITE 2021-11-19 16:56:20.743434+0700 mifone[10737:1103557] [Message] New server dialog [0x28302e670] , local tag [cR8JXw6], remote tag [as4d4ad262] 2021-11-19 16:56:20.743475+0700 mifone[10737:1103557] [Message] op [0x10d5b5930] : set_or_update_dialog() current=[0x0] new=[0x28302e670] 2021-11-19 16:56:20.743567+0700 mifone[10737:1103557] [Message] New incoming call from ["Mitek 8160" sip:[email protected]] to [sip:[email protected]:5060] 2021-11-19 16:56:20.743921+0700 mifone[10737:1103557] [Message] Found payload PCMU/8000 fmtp= 2021-11-19 16:56:20.743955+0700 mifone[10737:1103557] [Message] Found payload PCMA/8000 fmtp= 2021-11-19 16:56:20.743980+0700 mifone[10737:1103557] [Message] Found payload GSM/8000 fmtp= 2021-11-19 16:56:20.744024+0700 mifone[10737:1103557] [Message] Found payload telephone-event/8000 fmtp=0-16 2021-11-19 16:56:20.744094+0700 mifone[10737:1103557] [Warning] Receiving a call while one with same address ["Mitek 8160" sip:[email protected]] is initiated, refusing this one with busy message 2021-11-19 16:56:20.744176+0700 mifone[10737:1103557] [Message] channel [0x111708000]: message sent to [UDP://sipproxy01-2020.mipbx.vn:5566], size: [473] bytes 2021-11-19 16:56:20.744193+0700 mifone[10737:1103557] [Message] SIP/2.0 486 Busy here 2021-11-19 16:56:20.744209+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP 222.255.115.179:5566;branch=z9hG4bK6f59.a4499207.1 2021-11-19 16:56:20.744305+0700 mifone[10737:1103557] [Message] Via: SIP/2.0/UDP

[thipoo24]

Hi Did you find any solution for the above issue. Me too facing same busy here error.

[hieujames]

Hi Did you find any solution for the above issue. Me too facing same busy here error.

Hi, You can handle it directly from the callkit, let you receive the first call and update the call if there is an incoming

[thipoo24]

Sorry. Can you be more clear. Also have you upgraded the linphone version. Thanks in advance