We are facing issues in a few android devices, specifically POCO devices while initiating a call, the debug logs show the channel disconnected immediately after INVITE sent and we receive only IO error.
channel[0xb400006ee5d97100]: entering state READY
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: transaction [0xb400006f5065d1e0] channel state changed to [READY]
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Changing [client] [INVITE] transaction [0xb400006f5065d1e0], from state [INIT] to [CALLING]
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: channel [0xb400006ee5d97100]: message sent to [TLS://xx.xx.xxx.xxxx:xxxx], size: [1310] bytes
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: INVITE sip:xxx@xx.xx.xxx.xxxx:xxxx;transport=tls SIP/2.0
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Via: SIP/2.0/TLS xxx.xx.xx.xxx:41850;branch=z9hG4bK.bFaF1zuCb;rport
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: From: <
sip:xxxxxxxx@sip.linphone.org>;tag=mMHYUj8rA
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: To: sip:xyz@xx.xx.xxx.xxxx
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: CSeq: 20 INVITE
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Call-ID: WGSmocoDzx
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Max-Forwards: 70
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Supported: replaces, outbound, gruu, path, record-aware
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, PRACK, UPDATE
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Content-Type: application/sdp
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Content-Length: 631
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: Contact: <sip:172.16.10.191:41850;transport=tls>;+org.linphone.specs="conference/1.0,ephemeral/1.1,groupchat/1.2,lime"
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: User-Agent: {xxxxxx}/Linphone SDK %s
2023-08-31 17:25:47.864 8386-8386/? I/Linphone:
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: v=0
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: o=919898989898 1057 3255 IN IP4 172.16.10.191
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: s=Talk
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: c=IN IP4 172.16.10.191
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: b=AS:380
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: t=0 0
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: a=group:BUNDLE as
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: a=record:off
2023-08-31 17:25:47.864 8386-8386/? I/Linphone: m=audio 47392 RTP/AVP 96 97 98 0 8 101 99 100
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtpmap:96 opus/48000/2
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=fmtp:96 useinbandfec=1
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtpmap:97 speex/16000
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=fmtp:97 vbr=on
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtpmap:98 speex/8000
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=fmtp:98 vbr=on
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtpmap:101 telephone-event/48000
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtpmap:99 telephone-event/16000
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtpmap:100 telephone-event/8000
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtcp-mux
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=mid:as
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=extmap:1 urn:ietf:params:rtp-hdrext:sdes:mid
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtcp:41435
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtcp-fb:* trr-int 1000
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: a=rtcp-fb:* ccm tmmbr
2023-08-31 17:25:47.865 8386-8386/? I/Linphone:
2023-08-31 17:25:47.865 8386-8386/? I/Linphone: channel [0xb400006ee5d97100]: ending send background task with id=[48ea].
2023-08-31 17:25:47.867 8386-8386/? I/Linphone: bellesip_wake_lock_release(): Android wake lock released [ref=0x48ea]
2023-08-31 17:25:48.147 8386-8386/? I/Linphone: bellesip_wake_lock_acquire(): Android wake lock [belle-sip recv channel] acquired [ref=0x490a]
2023-08-31 17:25:48.147 8386-8386/? I/Linphone: bellesip_wake_lock_acquire(): cast long of wakelock 18698
2023-08-31 17:25:48.147 8386-8386/? I/Linphone: channel [0xb400006ee5d97100]: starting recv background task with id=[490a].
2023-08-31 17:25:48.147 8386-8386/? I/Linphone: channel[0xb400006ee5d97100]: entering state DISCONNECTED
2023-08-31 17:25:48.147 8386-8386/? I/Linphone: channel [0xb400006ee5d97100]: ending recv background task with id=[490a].
2023-08-31 17:25:48.149 8386-8386/? I/Linphone: bellesip_wake_lock_release(): Android wake lock released [ref=0x490a]
2023-08-31 17:25:48.149 8386-8386/? I/Linphone: transaction [0xb400006f5065d1e0] channel state changed to [DISCONNECTED]
2023-08-31 17:25:48.149 8386-8386/? I/Linphone: Channel [0xb400006ee5d97100] destroyed
2023-08-31 17:25:52.945 8386-8386/? I/Linphone: Changing [client] [INVITE] transaction [0xb400006f5065ca00], from state [CALLING] to [TERMINATED]
2023-08-31 17:25:52.945 8386-8386/? I/Linphone: Client INVITE transaction [0xb400006f5065ca00] terminated
2023-08-31 17:25:52.946 8386-8386/? I/Linphone: op [0xb400006ee5d1f700] : setOrUpdateDialog() current=[0x0] new=[0x0]
2023-08-31 17:25:52.946 8386-8386/? I/Linphone: Destroying op [0xb400006ee5d1f700] of type [SalOpCall]
2023-08-31 17:25:52.946 8386-8386/? I/Linphone: transaction [0xb400006f5065ca00]: ending transaction background task with id=[482e].
2023-08-31 17:25:52.948 8386-8386/? I/Linphone: bellesip_wake_lock_release(): Android wake lock released [ref=0x482e]
2023-08-31 17:25:52.949 8386-8386/? I/Linphone: Transaction [0xb400006f5065ca00] deleted
2023-08-31 17:26:04.154 8386-8386/? I/Linphone: Changing [client] [INVITE] transaction [0xb400006f5065d1e0], from state [CALLING] to [TERMINATED]
2023-08-31 17:26:04.155 8386-8386/? I/Linphone: Client INVITE transaction [0xb400006f5065d1e0] terminated
2023-08-31 17:26:04.155 8386-8386/? I/Linphone: [ToneManager] notifyToneIndication reason IO error
2023-08-31 17:26:04.156 8386-8386/? I/Linphone: [ToneManager] startNamedTone
2023-08-31 17:26:04.156 8386-8386/? I/Linphone: [ToneManager] playTone playing DTMF tone
2023-08-31 17:26:04.156 8386-8386/? I/Linphone: [Android Audio Utils] SDK version [33] detected
2023-08-31 17:26:04.157 8386-8386/? I/Linphone: [Android Audio Utils] Device's preferred buffer size is 144
2023-08-31 17:26:04.157 8386-8386/? I/Linphone: [Android Audio Utils] Device's preferred sample rate is 48000
2023-08-31 17:26:04.157 8386-8386/? I/Linphone: [AAudio Player] Created using device ID: AAudio Earpiece: M2010J19CG (2)
2023-08-31 17:26:04.158 8386-8386/? I/Linphone: speex_lib_ctl init with neon ? 1