We are getting multiple crashes and reported on fabric, can you please advise us if this is the iOS 11 issue since it is getting crashes on iOS 11 and above.
crashed: com.apple.main-thread
0 0x104df3e9c sal_op_get_call_id (sal.c:620)
1 0x104dd16d8 linphone_core_start_invite (linphonecore.c:3126)
2 0x104dd2810 linphone_core_invite_address_with_params (linphonecore.c:)
3 0x104dd2038 linphone_core_invite_with_params (linphonecore.c:3183)
4 0x104dd24ec linphone_core_invite (linphonecore.c:3160)
5 l 0x104537d9c specialized OutgoingCallVC.CallNow(pureNumber : String) -> () (OutgoingCallVC.swift:319)
6 l 0x1045331d8 OutgoingCallVC.callSetUP() -> () (OutgoingCallVC.swift:301)
7 l 0x104532bb4 OutgoingCallVC.viewDidLoad() -> () (OutgoingCallVC.swift:237)
8 l 0x104532f74 @objc OutgoingCallVC.viewDidLoad() -> () (OutgoingCallVC.swift)
9 UIKit 0x18fbf0f08 -[UIViewController loadViewIfRequired] + 1040
10 UIKit 0x18fbf0ae0 -[UIViewController view] + 28
11 UIKit 0x19078fa04 -[_UIFullscreenPresentationController _setPresentedViewController:] + 92
12 UIKit 0x18ff388b4 -[UIPresentationController initWithPresentedViewController:presentingViewController:] + 140
13 UIKit 0x18ff68db8 -[UIViewController _presentViewController:withAnimationController:completion:] + 2676
14 UIKit 0x18ff6bcd8 __63-[UIViewController _presentViewController:animated:completion:]_block_invoke + 104
15 UIKit 0x18ff6c20c -[UIViewController _performCoordinatedPresentOrDismiss:animated:] + 528
16 UIKit 0x18ff6bc28 -[UIViewController _presentViewController:animated:completion:] + 188
17 UIKit 0x18fccfab4 -[UIViewController presentViewController:animated:completion:] + 160
18 0x1045d2d3c specialized ContactInfoVC.requestSIPPaidCall(number : String) -> () (ContactInfoVC.swift:539)
19 0x1045d341c specialized ContactInfoVC.paidButtonTapped(sender : UIButton) -> () (ContactInfoVC.swift:193)
20 0x1045cf350 @objc ContactInfoVC.freeButtonTapped(sender : UIButton) -> () + 4366988112
21 UIKit 0x18fc25614 -[UIApplication sendAction:to:from:forEvent:] + 96
22 UIKit 0x18fc25594 -[UIControl sendAction:to:forEvent:] + 80
23 UIKit 0x18fc102fc -[UIControl _sendActionsForEvents:withEvent:] + 440
24 UIKit 0x18fc24e88 -[UIControl touchesEnded:withEvent:] + 576
25 UIKit 0x19027b084 _UIGestureEnvironmentSortAndSendDelayedTouches + 4280
26 UIKit 0x190276634 _UIGestureEnvironmentUpdate + 1224
27 UIKit 0x190276118 -[UIGestureEnvironment _deliverEvent:toGestureRecognizers:usingBlock:] + 404
28 UIKit 0x190275274 -[UIGestureEnvironment _updateGesturesForEvent:window:] + 276
29 UIKit 0x18fc1fe5c -[UIWindow sendEvent:] + 3180
30 UIKit 0x18fbf1384 -[UIApplication sendEvent:] + 340
31 UIKit 0x19053e85c __dispatchPreprocessedEventFromEventQueue + 2364
32 UIKit 0x190540de8 __handleEventQueueInternal + 4760
33 UIKit 0x190539d04 __handleHIDEventFetcherDrain + 152
34 CoreFoundation 0x1867622e8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
35 CoreFoundation 0x186762268 __CFRunLoopDoSource0 + 88
36 CoreFoundation 0x186761af0 __CFRunLoopDoSources0 + 204
37 CoreFoundation 0x18675f6c8 __CFRunLoopRun + 1048
38 CoreFoundation 0x18667ffb8 CFRunLoopRunSpecific + 436
39 GraphicsServices 0x188517f84 GSEventRunModal + 100
40 UIKit 0x18fc542f4 UIApplicationMain + 208
41 0x1044d88b0 main (Contact.swift:26)
42 libdyld.dylib 0x1861a256c start + 4