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9

Android does, but it's not very well documented. The ConnectionService class was introduced in Marshmallow and allows an app to register itself as a voice service, the user needs to manually enable the voice service through the phone settings (same place you would enable/disable SIP accounts). Once this is done you can choose between registered voice ...


8

The free and open-source OpenVPN for Android app supports this. In the profile configuration dialog, there is an 'allowed apps' tab that allows you to select a list of apps that is either excluded or excluded from using the established VPN: 'VPN is used for all apps but exclude selected' 'VPN is used for only for selected apps' (sic) The list then ...


4

I don't think you can change it by settings. If you see the list of compatible devices listed in the app description, you will find that your device does not figure . Only one plus one from your OEM is compatible Also if you read app reviews, on other devices which are not compatible, developer says it's due to hardware or firmware incompatibility


4

....why is cell recording allowed,... AFAIK call recording is not a feature of stock Android, though certain OEMs and custom ROMs enable it or can be done using apps. I guess legal restrictions is the reason for not enabling this feature, as call recording laws widely vary VOIP recording is quite different from voice recording Firstly, it is possible: ...


4

Can two apps use the microphone at the same time? As far as I know: By default, the same way two different apps can't use the camera at the same time, the same principle applies to microphone too. Since these hardwares' drivers respond to only one call from one user at a time. Of course you can make an app that gets the input from microphone and then acts ...


4

Android phone is technically handicapped to do this. There is no google API to playback an audio stream instead of the mic recording. You would have to rewrite the android's telephony stack to achieve this. And this will be dependent on the hardware and so cannot be a generic solution for all android phones. You cannot find a answering machine android app ...


4

Go to the contact. Open a message thread by tapping, then tap on the nam/number to view contact. At the top right (on Android) is the menu button. Tapping it brings up the option to 'view in address book'. This is the only way to do it right now.


3

Meshenger seems to be doing what you ask for. It is also available via f-droid. It works on LAN and needs no Internet or intermediate server. No DHCP server is needed, because it can work with IPv6 link local addresses. WebRTC is used as a transmission protocol for audio and video.


3

You might want to buy this phone. http://www.amazon.com/Panasonic-KX-PRW130W-dect_6-0-1-Handset-Telephone/dp/B00ISKW1J2/ref=sr_1_1?s=electronics&ie=UTF8&qid=1433663228&sr=1-1&keywords=KX-PRW130W


1

Yes it's possible just sign thought app with a test signature int should install via adb. Is thought still having issues just rename the package to com.android.cts.linphone and thou should be fine.


1

Yes most virtual numbers have such restrictions, however you have a higher success rate if you use voice for verification instead of SMS, you cant even setup voicemail recording to retrieve the call playback. If this fails get other similar virtual number provider like TalkU, you get credits by watching some ads, but the advantage is that you get to keep the ...


1

Call forwarding is a telephony or carrier function. It works amongst voice networks or some VOIP sites. For it to work with messenger apps: They should mutually allow it, which is unlikely given the revenue models of voice calling (at times call forwarding is a paid service even for voice networks) . Security concerns - for example, if the calling number ...


1

Please don't misguide. VOIP recording isn't possible due to sound Input device restriction. If a VOIP is working it occupies the "sound input device", as a result recorders will fail to record. It is simple as that. No other guesses.


1

According to this very well written document, this is NOT possible.


1

Just looking at the FAQ on Official WhatsApp site for placing a call, it seems that there is no provision at this moment to place NORMAL phone call via WhatsApp. Because WhatsApp may want to promote their NEW feature (VoIP Calls), they may not have included an option to place NORMAL phone call. Earlier, since WhatsApp did not have VoIP call feature, it ...


1

T-Mobile supports the Android's native WiFi calling mechanism, provided you have a device/Android version that support it.


1

Many SIP or other online providers can route call outbound sending your Caller ID, or any Caller ID you chose for that matter (there are some legalities to this, so it could depend on your country or locale), but to get inbound calls over that service the provider must "own" the number in order to route it. The only other option would be to get a different ...


1

The audio cannot be heard because CSipSimple by default advertises the Internet-facing IP address of the phone, not the OpenVPN address. This means the control messages get through (hence one can make calls), but the audio stream is routed out through the Internet and not over the VPN. Change to Expert mode To change this, the CSipSimple account "wizard" ...


1

"Most" calls to numbers in the US and Canada are free through Hangouts as long as you are also in the US/Canada. This is noted in Google's support pages and you can find all of the rates on this page. You need the Hangouts Dialer app in order to place a call. There is no specific listing of the US/Canada numbers that incur a charge (it's $0.01 per minute), ...


1

VoiceMac makes calls and SMSes via Google Voice. You can choose one of a GV number - which you keep, so your friends & family can recognize it - or you can port your existing phone number into GV. The incoming caller ID will show your GV number (but no name). Another option is to use Skype and validate your cell# as your Skype caller ID.


1

I was looking for the same sort of thing; android smartphone that can use tariff-free landline for incoming/outgoing calls at home (ie smartphone as a cordless landline extension). So far I have run across the Panasonic KX-PRW120 which is a DECT phone that use WiFi to connect to the associated android Smartphone Connect app (Google Play). Not decided ...


1

You will find nothing as it is not possible, Even you can make / answer calls programmatically but you can't control Voice / media flow due to some restrictions in Android Radio Interface Layer (RIL). for media/voice you have to relay on some other interfaces like Mic / speaker, Bluetooth, hand-free or loopback wires but all these thing are not what you are ...


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