Top "Telephonymanager" questions

Telephony class for Android devices

TelephonyManager returns null for IMEI number: what can cause this?

I'm working on an Android app and am getting null back for the IMEI number when using TelophonyManager. This is …

android telephonymanager imei
getAllCellInfo returns null in android 4.2.1

My Android version is 4.2.1 and I am trying to make use of TelephonyManager.getAllCellInfo() method. In my manifest file I …

android telephonymanager
Android: TelephonyManager.getSimSerialNumber() returns null

in which cases this method returns a null reference? Can only depend on the sim card? Doesn't exist, in these …

android telephony telephonymanager
Getting country code

I am implementing In App Purchase.In the in app product list,I have configured few products for country A …

android telephonymanager android-market-filtering mobile-country-code
Get RSRP from CellSignalStrengthLte for Android app API 17+

A few people over the past decade have asked similar questions but none have ANY answers. I need to write …

java android telephonymanager phone-state-listener lte
Neither user 10056 nor current process has android.permission.MODIFY_PHONE_STATE

I want to create such an application in which i want to open a dialer with specified number during call. …

android phone-call telephonymanager
No IMEI for Android Developers in Android 10

As Android is serious about security and trying to make new android versions more secure, its becoming tough for developers …

java android telephonymanager imei android-10.0
preferred_network_mode values for GWL/LTE ONLY/WCDMA ONLY/GSM using adb

I am using below adb commands for changing preferred network mode to GSM where value is 1, Can any one give …

android adb telephonymanager cellular-network lte
Getting reliable MSISDN from Android Phone? VoiceMailNumber Line1Number

First off the MSISDN is the same as the phone number. I have been looking into seeing if it if …

java android phone-number telephonymanager msisdn
How can I send a pre-recorded(wav) file during a voice call?

I want to develop an application through which if the caller calls you, the call should be answered automatically without …

android media-player telephonymanager android-audiomanager