Questions tagged [telephony]

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SIM Card Not Detected After Upgrade

I recently tried to upgrade my phone (Lenovo P2a42, AEX 6.7, Android 9.0, rooted with Magisk 20.3) to Android 10 (HavocOS 3.1, Android 10). Unfortunately, it had quite a few issues and I ended up ...
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31 views

Monitor Network Availability (for phone calls)

Obviously my network carrier has some problems. Though my mobile phone shows two or three bars out of four for my mobile connection, I don't receive any phone calls (not available). Is there some ...
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427 views

Can't find call log from adb shell

Phone is a Samsung Galaxy E5 SM-E500m (lte, dual chip, codename e5lte). Android version 5.1.1 "lollipop" Stock ROM. I pulled the database file from /data/data/com.android.providers.contacts/databases/...
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45 views

How is the GSM Call Flow implemented and when is the microphone opened?

Is it possible to know how is the GSM call flow implemented on Android? I will like to know concretely when its the microphone opened.
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1answer
7k views

How to auto-answer video calls for telepresence/baby monitor/pet cam?

I would like to leave a tablet on my shelf and be able to video call into it while away and talk/hear/see my home without anyone necessarily being there, just to be able to check in. I have looked for ...
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95 views

Where there are attempts to enter a password for unlocking operator sim lock?

My phone (Micromax Q415) attached to the SIM card operator megaphone. If I insert a SIM card of another operator, the phone will ask for the unlock key. I found an application that shows this screen ...
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183 views

com.android.phone has stopped working after manually upgrading Verizon LG G3 (VS985) to Marshmallow using LGUP tool

I manually upgraded my LG VS985 to marshmallow from Kitkat using the LGUP tool and the LG Stock Rom for Verizon (LG VS985 Firmware VS98547A_01_0314_ARB01.kdz). After booting it just keeps showing ...
2
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1answer
2k views

Microphone extremely quiet

For some time, my microphone is extremely quiet when doing things like making voice messages on WhatsApp or when calling someone. I searched the internet for a solution, but I couldn't find anything ...
2
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0answers
40 views

Without telephony and GPS apps/libraries, security subsections crash?

In CyanogenMod 13, I've removed all telecom/telephony/GPS support from a ROM in an effort to reduce the device to basically be a wifi-only mini tablet. This entailed removing all relevant apps and a ...
4
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1answer
415 views

Why do so many applications try to get the SIM and network operator name?

I understand what Android permissions mean and I have a specific question about two telephony permissions. I've been using XPrivacy for a while and noticed that many apps that ostensibly have nothing ...
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137 views

Having problems with carrier activation and connecting to cell network

I have a Sprint HTC One (m7wls) and recently switched over to Ting. I was using Cyanogenmod and couldn't use Ting's instructions for activating with them, so I used an RUU from HTC to get back to ...
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1k views

Incoming call notifications not working - Phone state

In my Android phone, Incoming calls notification is not working.Out going is working fine. Actually Whenever I am calling my mobile from my friend's mobile, Its saying "line is busy". If I visit call ...