how to forward the calls to voice mail in android programmatically

Question

I do not know how to forward the calls to voice mail programmatically in android ?

Does [this](http://stackoverflow.com/q/7298767/645270) help? (Editing a `SEND_TO_VOICEMAIL` value in a table) — keyser, Sep 25 '12 at 12:52
If voice mail facility is active on device and after disconnecting the call, It will prompt calling user to leave voice mail. — Santhosh, Sep 25 '12 at 12:53
@AndroidRaji : Keyser is suggesting this http://stackoverflow.com/questions/7298767/set-send-to-voicemail-on-android-contacts link — Santhosh, Oct 08 '12 at 07:08
are you asking how to activate voice mail or developing an app that will send a phone call straight to voice mail? — Roy James Schumacher, Oct 24 '12 at 10:33
developing an app that will send a phone call straight to voice mail — AndroidRaji, Oct 25 '12 at 04:26

BitByteDog · Answer 1 · 2020-08-05T20:58:45.487

The selected answer is only correct if you want to limit your implementation to the Android public SDK.

It is possible to send a call to voice mail programmatically on Android.

While the phone is ringing, end the call. The call will be diverted to voice mail by the network. In GSM/WCDMA this is a feature called User Determined User Busy or UDUB, it also works on CDMA devices.

There are plenty of answers on SO on how to end a call on Android:

Using Java reflection and the iTelephony interface:

End call in android programmatically or end incoming call programmatically

== Update 2020 ==

Since Android P it is possible to hangup calls using the Android SDK - therefore forwarding to voicemail is now a supported feature of Android.

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
    TelecomManager tcm = context.getSystemService(TelecomManager.class);
    if(tcm != null)
        tcm.endCall();
}

Add the necessary permission to AndroidManifest.xml

    <uses-permission android:name="android.permission. ANSWER_PHONE_CALLS" />

score 1 · Accepted Answer · answered Dec 23 '12 at 23:01

1

You can't.

Call forwarding is done by your carrier not by your phone, when the call reaches your phone its too late to forward it.

answered Dec 23 '12 at 23:01

Androidz

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Android has a setting in People app that does it, so it must be possible. – powder366 Feb 02 '14 at 11:03

how to forward the calls to voice mail in android programmatically

2 Answers2