Top "Phone-call" questions

Phone calls are a method of transferring real-time two-way voice information over large distances.

how to make call from pc using local landline phone services

I have a desktop application of address diary, developed in C# .Net. I want to make call from software throw …

c# winforms desktop-application phone-call
Phone call state

How do we know programmatically that the call I am making is received in the other side ? I know that …

android telephony phone-call
Call from second sim

I have a dual sim android phone. I am using this code to make a call: private void callBack(String …

android phone-call dual-sim
Background music for call

I want to develop an app which play background music for a call,and is audible only for the caller …

android phone-call background-music
How do I get state of a outgoing call in android phone?

I noticed in the class TelephonyManager there are CALL_STATE_IDLE, CALL_STATE_OFFHOOK and CALL_STATE_RINGING. They seem …

android telephony phone-call
Android Media Recording: java.lang.RuntimeException: start failed

I am working on records a phone calls. When i start a record a phone call then it's unfortunately stop. &…

android audio-recording phone-call
Call transfer from one device to another through Bluetooth

I am working on an application where I need to transfer call from one device to another through Bluetooth protocol (…

android bluetooth phone-call
android Call Forwarding programmatically

I want to forward any calls received to another predefined phone number. I have searched forums and found some contradictory …

android phone-call
Track a phone call duration

Is it possible to utilize the users phone through their cell provider, and track the length of a phone call? …

android android-intent broadcastreceiver phone-call
iOS How to check if currently on phone call

I have look around and all I can find is checking the callState of CTCallCenter. However, this works by listening …

iphone objective-c ios xcode phone-call