[Google Pixel 3 XL ROMs, Kernels, Recoveries, & Oth] queuecumbr:
Looks like some progress. Before when ticking WiFi Calling, it would immediately give an error. Now it takes time while it has a loading icon saying "Please wait..." until it times out. Here is the relevent info from my logcat again. Thanks for the hard work [MENTION=614507]razorloves[/MENTION] :)

02-22 09:30:06.845 4620 4620 D WfcActivationActivity: Start Activity with subId : 1
02-22 09:30:06.845 4620 4620 D WfcActivationActivity: Loading dependencies...
02-22 09:30:06.846 2246 2246 D WifiCallingSettings: Adapter getCount 1
02-22 09:30:06.846 2246 2246 I chatty : uid=1000(system) com.android.settings identical 1 line
02-22 09:30:06.846 2246 2246 D WifiCallingSettings: Adapter getCount 1
02-22 09:30:06.847 4620 4620 D WfcActivationActivity: Start Activity intention : 0
02-22 09:30:06.850 4620 4620 D WfcActivationActivity: Start VoWiFi activation flow.
02-22 09:30:06.855 4620 4620 D WfcActivationActivity: Next state is 1
02-22 09:30:06.855 4620 4620 D WfcActivationActivity: Query SSO token...
02-22 09:30:06.885 1345 1372 I ActivityTaskManager: Displayed com.google.android.wfcactivation/.VzwEmergencyAddressActivity: +95ms
02-22 09:30:06.897 897 897 D android.hardware.power@1.3-service.pixel-libperfmgr: LAUNCH: 0
02-22 09:30:06.905 4620 4620 D WfcActivationActivity: SSO token not available, updating...
02-22 09:30:06.954 1345 1366 I DropBoxManagerService: add tag=system_server_strictmode isTagEnabled=true flags=0x2
02-22 09:30:06.954 3943 4043 E MVS_LoginClient: Result Code: 5001
02-22 09:30:06.971 1345 1366 I DropBoxManagerService: add tag=system_server_strictmode isTagEnabled=true flags=0x2
02-22 09:30:07.473 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:08.975 1345 1373 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.stats.service.DropBoxEntryAddedReceiver
02-22 09:30:08.975 1345 1373 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.intent.action.DROPBOX_ENTRY_ADDED flg=0x10 (has extras) } to com.google.android.gms/.chimera.GmsIntentOperationService$PersistentTrustedReceiver
02-22 09:30:09.477 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:10.010 881 2406 D audio_hw_primary: disable_audio_route: usecase(1) reset and update mixer path: low-latency-playback speaker
02-22 09:30:10.013 881 2406 I audio_hw_cirrus_playback: audio_extn_spkr_prot_stop_processing: pcm_tx_close
02-22 09:30:10.022 881 2406 D audio_hw_primary: disable_audio_route: usecase(25) reset and update mixer path: spkr-vi-record vi-feedback
02-22 09:30:10.023 881 2406 D audio_hw_primary: disable_snd_device: snd_device(104: vi-feedback)
02-22 09:30:10.909 2570 5915 I Authzen : [DeviceStateSyncManager] The server is in sync with current state. Nothing to do
02-22 09:30:11.475 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:12.262 1345 2279 E LightsService: Light requested not available on this device. 2
02-22 09:30:12.263 2874 2906 I QcrilOemhookMsgTunnel: [0]processOemHookIndication length=21
02-22 09:30:12.263 2874 2874 D QcrilMsgTunnelIfaceManager: handleMessage what = 0
02-22 09:30:12.301 1345 2235 I LocationAccessPolicy: com.google.android.setupwizard is aware of coarse but the app-ops permission is specifically denied.
02-22 09:30:12.304 2228 2228 D ServiceStateProvider: subId=1
02-22 09:30:12.307 4318 4318 I CarrierServices: [2] csb.onReceive: Received SERVICE_STATE intent, clearing cached cell info
02-22 09:30:12.308 5698 5698 D CellBroadcastReceiver: onReceive Intent { act=android.intent.action.SERVICE_STATE flg=0x1000010 cmp=com.android.cellbroadcastreceiver/.CellBroadcastReceiver (has extras) }
02-22 09:30:12.312 2145 2214 I QCNEJ/CndHalConnector: -> SND notifyWwanSubtypeChanged(13)
02-22 09:30:12.312 2145 2214 I QCNEJ/CndHalConnector: -> SND notifyMobileDataEnabledChanged(true)
02-22 09:30:13.478 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:15.480 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:15.519 1345 2279 D WificondControl: Scan result ready event
02-22 09:30:15.549 1345 1827 D WificondScannerImpl: Filtering out 17 scan results.
02-22 09:30:15.563 1345 1373 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.net.wifi.SCAN_RESULTS flg=0x4000010 (has extras) } to com.verizon.mips.services/com.verizon.mips.common.receiver.MVSImplicitBroadcastReceiver
02-22 09:30:17.488 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:19.490 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:21.440 892 892 I /vendor/bin/hw/android.hardware.health@2.0-service.crosshatch: Entry state_: 1 charger_status: Charging batteryLevel: 100
02-22 09:30:21.441 892 892 I /vendor/bin/hw/android.hardware.health@2.0-service.crosshatch: Exit state_: 1 batteryLevel: 100
02-22 09:30:21.491 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:43.525 902 2095 I chatty : uid=1010 wifi@1.0-servic identical 11 lines
02-22 09:30:45.530 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:45.975 898 988 D ASH : @ 601.022: AP has been up: last 300811291, now 601021872 usec
02-22 09:30:45.976 898 988 D ASH : @ 601.023: Sending to ASH storage: 0 211 1
02-22 09:30:47.433 1345 1345 V SettingsProvider: Notifying for 0: content://settings/system/screen_brightness
02-22 09:30:47.531 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:48.489 898 988 D CHRE : @ 603.532: [ImuCal] Dynamic sensor configuration: stand-by.
02-22 09:30:48.517 898 988 W ASH : @ 603.564: bmi160: timestamp decrement on sensor [1]: prev = 602,563,299,624, curr = 602,558,492,276
02-22 09:30:48.626 1345 1806 E LightsService: Light requested not available on this device. 2
02-22 09:30:49.533 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:50.490 898 988 I CHRE : @ 605.538: [ImuCal] [NanoSensorCal:GYRO_RPS] Offset | Temperature [C]: 0.004240, 0.000879, 0.000511 | 28.83
02-22 09:30:50.491 898 988 I CHRE : @ 605.539: [ImuCal] [NanoSensorCal:GYRO_RPS] Temp Sensitivity: -0.000400, 0.000061, -0.000008
02-22 09:30:50.491 898 988 I CHRE : @ 605.539: [ImuCal] [NanoSensorCal:GYRO_RPS] Temp Intercept: 0.016663, -0.001700, 0.000424
02-22 09:30:50.962 2570 4450 I Icing : Indexing com.google.android.gms-internal.3p:Message from com.google.android.gms using seqno 6
02-22 09:30:51.103 3943 3943 E ActivityThread: Failed to find provider info for com.verizon.loginclient
02-22 09:30:51.160 3943 3943 E ActivityThread: Failed to find provider info for com.verizon.loginclient
02-22 09:30:51.302 3943 4043 E MVS_LoginClient: Result Code: 5001
02-22 09:30:51.441 1345 1345 V SettingsProvider: Notifying for 0: content://settings/system/screen_brightness
02-22 09:30:51.533 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:53.535 902 2095 I chatty : uid=1010 wifi@1.0-servic identical 1 line
02-22 09:30:55.536 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:55.556 1345 2279 D WificondControl: Scan result ready event
02-22 09:30:55.599 1345 1373 W BroadcastQueue: Background execution not allowed: receiving Intent { act=android.net.wifi.SCAN_RESULTS flg=0x4000010 (has extras) } to com.verizon.mips.services/com.verizon.mips.common.receiver.MVSImplicitBroadcastReceiver
02-22 09:30:55.605 1345 2279 E LightsService: Light requested not available on this device. 2
02-22 09:30:57.543 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:30:59.552 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:31:00.004 1893 1893 D KeyguardClockSwitch: Updating clock: 9ε╕ü31
02-22 09:31:00.040 1345 1345 V SettingsProvider: Notifying for 0: content://settings/system/screen_brightness
02-22 09:31:01.555 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:31:02.104 4620 4620 D WfcActivationActivity: MVS login client error: 5001
02-22 09:31:02.104 4620 4620 D WfcActivationActivity: SSO token updating error: 3
02-22 09:31:02.115 1345 2279 E InputDispatcher: Window handle Window{e3c5a68 u0 com.google.android.wfcactivation/com.google.android.wfcactivation.VzwEmergencyAddressActivity} has no registered input channel
02-22 09:31:02.132 1345 2279 E InputDispatcher: Window handle Window{e3c5a68 u0 com.google.android.wfcactivation/com.google.android.wfcactivation.VzwEmergencyAddressActivity} has no registered input channel
02-22 09:31:03.486 1345 1806 E LightsService: Light requested not available on this device. 2
02-22 09:31:03.557 902 2095 I WifiHAL : event received NL80211_CMD_VENDOR, vendor_id = 0x1374, subcmd = 0xd
02-22 09:31:03.563 4620 4620 D WfcActivationActivity: VerizonWfcActivation{purpose:1,activation_result:2,reason_code:3,duration:55257,token_availability:0,address_registered:false,address_validation:0,}