I am developing a VoIP service.
Usually, when receiving a VoIP Push, Callkit is exposed immediately after receiving the message and the app is designed to be used.
However, there is an extremely intermittent phenomenon (not well reproduced) where the app does not wake up even when receiving a VoIP Push. And after a long time, the app wakes up and Callkit is activated. (A long time after receiving the call…)
Has anyone experienced the above phenomenon? I wonder if there are any reported parts depending on the OS version. (I have identified that it does not occur in the 17.x version, but it is difficult to guarantee because it occurs extremely intermittently)
The app is not running in the background, but... Could this be happening if there are a lot of pending operations in the background?
I need help urgently
hkyoo@lguplus.co.kr
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We are checking for cellular mode using the code below.
When the code below is executed, is it correct to convey the status value of the actually connected cellular environment?
Sometimes HSDPA or WCDMA is output.
I would like to inquire under what conditions the value is output.
[Code]
func getCellularConnectionType() -> String {
if #available(iOS 14.1, *) {
if let radioAccessTechnology = networkInfo.serviceCurrentRadioAccessTechnology?.values.first {
Debug.log("Radio Access Technology: (radioAccessTechnology)")
switch radioAccessTechnology {
case CTRadioAccessTechnologyLTE:
return "LTE"
case CTRadioAccessTechnologyNRNSA:
return "5G-NSA"
case CTRadioAccessTechnologyNR:
return "5G-SA"
default:
return "ETC"
}
}
}
return "Cellular"
}