785 questions
0
votes
0
answers
21
views
what's the solution to unsupported FEATURE_TELEPHONY_RADIO_ACCESS?
I want to use some public methods from Android TelephonyManager which requires FEATURE_TELEPHONY_RADIO_ACCESS.
However, as I checked it using package manager it shows that my device does not support ...
0
votes
0
answers
30
views
How to Disable the Default Calling Screen on Android using java?
I'm developing an Android application that automatically picks up incoming calls on a device (let's call it Device B). I am done with the auto-pick call. Now I want to disable the default calling ...
0
votes
0
answers
11
views
How to Play Audio for Caller in Call App on Android?
I'm developing an Android application that automatically picks up incoming calls on a device (let's call it Device B). After picking up the call, I want to play a predefined audio file after a 10-...
1
vote
0
answers
77
views
java.lang.SecurityException: iccOpenLogicalChannel
I want to run applet that is installed on sim card using android app and receive results. so i tried Telephony API and OMAPI but I catch "java.lang.SecurityException" when i try to create ...
0
votes
0
answers
44
views
Android Studio Java Check if Incoming Call is Forwarded
I am creating an android studio java app where i would like to check if the incoming call has been forwarded
Below is my manifest where i am declaring READ_PHONE_STATE permission and also declaring my ...
- 1,282
0
votes
0
answers
281
views
How to get Incoming call phone number in android 14
I want to get incoming caller number , i used a BroadcastReceiver , i use this method and have no problem :
getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER)
, but i get warning from android ...
- 105
0
votes
0
answers
122
views
TelephonyManager.allCellInfo returns all cell despite createForSubscriptionId
I'm not sure if it's normal, but even though I instantiated a specific TelephonyManager for each of my SIM cards (with the subscriptionId), calling allCellInfo returns all cells detected by the device....
- 282
0
votes
0
answers
71
views
TelephonyManager: Callback function for SIM Operator Name change
I'm developing an APP for mobile network testing.
The Home page of the APP shows the mobile network the SIM is registered to.
I need to keep this info updated, how can I do?
This is the current ...
0
votes
1
answer
98
views
Get info about incoming call from selected sim
I use a broadcast receiver to intercept calls coming to the phone and send them and then process them. I need to receive calls only from a certain SIM card in a two-key phone. I can try to do it like ...
- 59
0
votes
1
answer
223
views
TelephonyManager returning NULL and ACTUAL NUMBER
I'm working on an Android app that detects incoming calls using a BroadcastReceiver. When an incoming call is detected, I want to perform a task, but I'm facing an issue with handling null phone ...
- 80
0
votes
0
answers
37
views
Network scan without MODIFY_PHONE_STATE privilege
I’m trying to develop an Android APP for mobile network testing on my Samsung A52.
One of the most important task is to perform a network scan to find all the mobile networks available, the signal ...
0
votes
0
answers
166
views
Kotlin: TelephonyManager.networkCountryIso instead of TelephonyManager.getNetworkCountryIso()
I'm trying to develop an Android APP that manages telephony services.
One of the first tasks I tried to implement is getting info from the phone/SIM.
In https://developer.android.com/reference/kotlin/...
1
vote
0
answers
274
views
onSignalStrengthsChanged method in TelephonyCallback.SignalStrengthsListener interface is not called when signal strength changes
My code is as follow:
val executor = this.mainExecutor
if (Build.VERSION.SDK_INT >= VERSION_CODES.S) {
tm.registerTelephonyCallback(executor, ...
- 73
0
votes
0
answers
64
views
Unable to Register TelephonyManager for Signal Strength Changes due to SecurityException
I am facing an issue while trying to register a TelephonyManager to listen for signal strength changes in my Android application. The error message I'm encountering is:
java.lang.SecurityException: ...
- 125
1
vote
1
answer
877
views
I want to get hold of phone number Programmatically as the phone is ringing in android
I want the caller's number as the phone is ringing in android. Since "EXTRA_INCOMING_NUMBER" constant of "TelephonyManager" is deprecated now I don't know how to get the same ...
user20273569
0
votes
0
answers
221
views
How find the LTE bandwidth in Android
I need to find the LTE bandwidth in Android. I tried requestCellInfoUpdate method in TelephonyManager:
cellInfoCallbackObject = MyCellInfoCallback()
executor = requireActivity().mainExecutor
tm....
- 73
0
votes
1
answer
213
views
Which CQI table should i choose for CQI value from telephony manager api
I am getting cqi value (Get channel quality indicator Reference: 3GPP TS 136.213 section 7.2.3.) from telephony manager, but now i am confused which exact table should i choose for 4g network and 5g ...
- 947
-1
votes
1
answer
99
views
How to check if sim card is installed (sim state) or cell signal strength on connected bluetooth devices programmatically?
I'm developing a system dialer app for my android device, which can use a bluetooth-connected phone to make calls. So I need to know whether sim card is inserted or not or at least its cell signal ...
- 147
4
votes
0
answers
62
views
Undocumented SIM States in TelephonyManager
I'm working on an application where I want to read the SIM State, and I've been following along with Google's documentation on getSimState.
Some of my users are returning values that are not ...
- 115
0
votes
1
answer
168
views
Call using sim index in android, API level 31, android 12
I have a scenerio where I want to call someone without human interation,
I am sending phone number and sim slot index using socket, if default sim is not selected android shows me sim selector popup, ...
- 190
1
vote
1
answer
199
views
Wrong permission dialog when registering CallStateListener
My app wants to stop audio processing when the phone receives a call.
When the app starts, Android thinks, that the app wants to make and manage phone calls, which is wrong.
// in constructor
...
- 12.1k
2
votes
0
answers
115
views
Interact with android's USSD session
I would like to write an android app that interacts with USSD session menus
According to my research in Java, there is the possibility of using TelephonyManager to execute the USSD, read the response ...
- 56
0
votes
1
answer
443
views
Parsing CellSignalStrength in Kotlin: how can I get all strength parameters individually?
right now i am trying to make an app to show signal strength information as hobby while learning programming. here is the code i have.
val tm = getSystemService(TELEPHONY_SERVICE) as TelephonyManager
...
- 1
0
votes
1
answer
385
views
How to fix 'Phone Account Handle not enabled' error when attempting to add incoming calls(system managed) to Android app
System managed connection - place inbound call process
first i initialzed the telecom manager
private void initializeTelecomManager(){
Context context=this.getAppContext();
...
2
votes
3
answers
292
views
Create IExecutor in .net Maui for Android?
I am not sure how to implement an IExecutor in .Net Maui. I need this executor in order to be able to simply run a function in Android (it takes in an IExecutor as a parameter). I literally don't know ...
- 433
0
votes
0
answers
150
views
Android TelephonyManager is returning null value for telephonyManager.getSimSerialNumber(); and getDeviceId();
public class MainActivity extends AppCompatActivity {
private static final int PERMISSION_REQUEST_CODE = 100;
TextView textView, textView1;
TelephonyManager telephonyManager;
@RequiresApi(api = ...
1
vote
1
answer
174
views
Why is Xamarin class inaccessible due to protection level?
I am trying to access the telephony manager class in Xamarin forms. I read up on the constructor needed to be used in Xamarin.
While I am still a little confused on the types the constructor needs, ...
- 433
1
vote
0
answers
71
views
How to find out which SIM is receiving an incoming call in android?
I am listening to a broadcast receiver. In a dual SIM, how do I know which SIM is receiving an incoming call. The intent bundle only contains the state and the incoming phone number.
public void ...
- 2,393
0
votes
0
answers
533
views
Esim: carrier privileges returns false
I shared app's release sha-256 key and package name with eSim creating vendor, he added to profile metadata, but
fun checkCarrierPrivileges(): Boolean {
val telephonyManager =
context....
1
vote
0
answers
852
views
Android targetSdkVersion 31 TelephonyManager listen SecurityException
My app's targetSdkVersion is 31.
App crashed like this..
java.lang.SecurityException: listen
at android.os.Parcel.createExceptionOrNull(Parcel.java:3023)
at android.os.Parcel....
- 11
1
vote
0
answers
510
views
How can I detect a new incoming call during an active phone call programmatically in Android
I'm building an Android Dialer App and currently I'm working on a calling feature. The problem that I'm facing right now is when I'm already on a phone call and someone calls me, my app doesn't detect ...
- 179
1
vote
1
answer
4k
views
How to use TelephonyCallback.CellInfoListener?
I'd like to get cell information updates on an android 12 phone.
I can do this for older versions of android using PhoneStateListener class and listen method. But they are deprecated in android 12.
I'...
- 73
0
votes
1
answer
365
views
Get Cellinfo for dual sim (Primary -physical sim and Secondary E-sim) Android
Background: As mentioned in the header, I use two sims (one physical and one Esim). Either one can be made primary sim as required by the user. Also, both the sims are active at the same time.
My app ...
4
votes
3
answers
2k
views
Flutter Telephony not recieving sms in real hardware except emulator
I am using telephony dependencies for receive_sms.
It is working fine in the emulator and I receive every message sent, but it is not working on a real hardware phone.
import 'package:flutter/material....
- 1,149
0
votes
1
answer
95
views
Making hands-free calls
In my application, I need to make a call to a number, but the call must be made hands-free. I tried many available methods, min the method from this link.
The application logs showed the action of ...
- 33
1
vote
2
answers
7k
views
How get IMEI of device?
I a beginner in android development and I try to get device IMEI but I have a problem of permission.
I don't have android.permission.READ_PRIVILEGED_PHONE_STATE property in my project but the function ...
- 159
0
votes
1
answer
816
views
Unable to use USE_ICC_AUTH_WITH_DEVICE_IDENTIFIER permission signed Android app
for my use cases I needed to extract non-resettable hardware information like IMEI, MAC from android devices.
As per the android docs for getting IMEI
https://developer.android.com/reference/android/...
- 672
1
vote
1
answer
2k
views
get Incoming call contact name and phone number using android studio kotlin
I'm trying to construct an app that requires the name and phone number of the incoming call contact.
I did research to find a solution, but all the data I found was in java and there wasn't much in ...
- 340
0
votes
1
answer
662
views
How to sendMultiPartTextMessage in Java
i'm trying to modify an existing plugin to enable it send long text messages. I am not so familiar with java, but I found some examples online and followed them. However i'm getting an error ...
- 33
0
votes
1
answer
1k
views
Android Telephony CellSignalStrength
sorry for my bad english.
I want to ask about android telephony : CellSignalStrength
I have code like below to display signal strength information on android..
public class MainActivity extends ...
0
votes
1
answer
186
views
How to check android mobile network mode setting state "Always on" or "Auto" or "Always off" programmatically?
I need to get mobile network setting state in WearOS: "Always on" or "Auto" or "Always off".
Exactly need to differentiate these states in code
maybe there is a way ...
- 147
0
votes
1
answer
734
views
React Native Script TelephonyManager not working
Here is my NativScript code for android
package com.chetti; // replace com.your-app-name with your app’s name
import com.facebook.react.bridge.NativeModule;
import com.facebook.react.bridge....
- 442
3
votes
1
answer
418
views
CarrierService.onLoadConfig not being called even after gaining Carrier Privileges
I am working on a feature where i need to update some CarrierConfig for our subscriptions once the Sim is being installed and the app gains the Carrier Privileges. Now the app successfully gains the ...
- 528
3
votes
0
answers
702
views
Android PhoneStateListener.LISTEN_SIGNAL_STRENGTHS and TelephonyManager#requestCellInfoUpdate return different signal strength
I want to monitor the cellular signal strength. My testing device use WCDMA.
telephonyManager.requestCellInfoUpdate(mainExecutor,object : TelephonyManager.CellInfoCallback() {
override fun ...
- 7,548
0
votes
1
answer
645
views
Convert RSRP to RSSI from CellSignalStrengthLte
So I need to get RSSI of LTE network and I know that CellSignalStrengthLte has special method for getting RSSI, but it is available for API >= 29, but my app has min API of 23.
However I can get a ...
- 190
3
votes
0
answers
497
views
Ussd Handling on Android 8+ without accessibility
I've been trying to handle multi-session USSD response using the new sendUssdRequest Telephony API for like a week now. So far I've been able to see only propositions for accessibility which I don't ...
- 167
0
votes
1
answer
492
views
I want to use requestCellInfoUpdate in Android 9
I'm using requestCellInfoUpdate() callback to get the latest cell info results. It is working fine in Android version Q and above but when I use it in versions below 10, the app crashes. My goal is to ...
2
votes
1
answer
1k
views
Play console does not consider uses-feature -> required="false" in manifest for android app bundle
I am trying to publish app bundle on play store. It shows wifi only tablet not supported because of android.hardware.telephony feature. I set this feature's required flag to false. But still play ...
- 821
0
votes
1
answer
1k
views
telephonyManager.getAllCellInfo() and subscriptionManager.getActiveSubscriptionInfoList() both returns different mnc (mobile Network code)
I'm trying to get the signal strength of dual sims it works absolutely fine on most of the phones but for some phones (same android version [11] but different geographic location) the MNC code what we ...
- 148
1
vote
0
answers
1k
views
How to retrieve incoming and outgoing phone number in android?
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.P) {
phnNbr = intent?.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER).toString()
} else if (Build.VERSION.SDK_INT > Build....
- 131