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Questions tagged [telephony]

related to transmitting or receiving data over telephone networks.

820 questions
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2 answers

Can I get an Android device ID through a mobile website?

Is it possible to get a device's telephony ID, MAC Address, serial number, and/or Android ID through a mobile website? That is, not through a downloadable app, but through a link that the user goes to in the browser on their mobile device? If so,…
Kalina
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2 answers

How to record call in android? Is it possible?

I want to record call from android phone. I am using android.media.MediaRecorder pckg. Also used following…
onkar
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9
votes
2 answers

Lookup telephone area code by latitude and longitude

Looking for a way to get a list of telephone area codes for a given latitude and longitude (and if necessary a given intl. code.) Note, I'm not talking about international dialing prefixes but the area codes within them. For example, Denver Colorado…
Yuri Gadow
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9
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3 answers

Copy/paste phone number into keypad or dial a toll free number in iOS programatically

I am trying to make a call from my app using [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"telprompt://1800000002"]]; This is a toll free number in India.But while dialing, it is converting to +1(800)-000-000 (Converting and…
soumya
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9
votes
1 answer

iOS how to find country code of the user's phone number?

I have an app that needs to figure out the country code of the phone number the user has. My understanding is that I can't just get the phone number of the user, but, is there a way for example if I have a US phone number to get the country code…
zumzum
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9
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3 answers

What happens at the system level on an incoming call?

I've downloaded the entire source code for the master branch from https://android.googlesource.com/platform/frameworks/base/+/master, and am trying to decipher the chain of events on an incoming call. I assume that the ACTION_ANSWER intent is…
Bachalo
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4 answers

how to resolve this error "com.android.internal.telephony cannot be resolved to a type" in android

i am creating simple call filter application which restrict unwanted calls. i use following code to restrict call but i am unable to resole problem of this line in below code " com.android.internal.telephony.ITelephony telephonyService =…
Prashant Kadam
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3 answers

What is the use of TelephoneNumberUtil class?

I want to know the basic use of TelephoneNumberUtil class in Android. I searched on that but in the Android I'm not able to get a proper answer. Can anyone explain me the exact use of this class?
anddev
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8
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1 answer

Open source FSK decoder library?

I'm looking for a library or tool to decode FSK in wav files, e.g. caller id. Currently using the tools bundled with vpb-driver for Voicetronix hardware that is available via debian/ubuntu. But this appears to have an error that I'm trying to debug…
bstpierre
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8
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3 answers

Detect target phone number on incoming call is it for SIM 1 or for SIM 2?

I have an Android phone with 2 SIM card and I want to detect the target of the incoming call — is it for SIM 1 or for SIM 2. Is it possible to get the target number from call info?
Jebasuthan
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8
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2 answers

Android Modifying in-call screen via AOSP

I've read elsewhere that “Developers cant customize the in-call screen because of security concerns” So, I am trying to understand the functionality of the in-call screen at the source level. Can any Android devs, especially those that have created…
Bachalo
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8
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1 answer

How to find out whether a particular device has SIM Hardware support?

I wanted to disable features related to CALL and SMS in my application based on whether SIM hardware is present or not. Now a beginners approach towards this will be checking the Phone type using : if (telephonyManager1.getPhoneType() ==…
binaryKarmic
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7
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2 answers

Bluetooth dial with 32feet.net and c#

I am trying to provide a "click to dial" solution for someone to a bluetooth device such as a mobile phone. I have been trying to do so using the 32feet.net bluetooth api. I haven't really done anything with bluetooth (since the days of at commands…
Tim
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7
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7 answers

how to access com.android.internal.telephony.CallManager?

I am trying to access CallManager class object from com.android.internal.telephony package. Here is my code: ClassLoader classLoader = TestActivity.class.getClassLoader(); final ClassLoader classLoader = this.getClass().getClassLoader(); try { …
Harsha
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How to retrieve disconnect cause of android call?

I have registered a broadcast receiver for PHONE_STATE so whenever a call is disconnected I can execute code. I am trying to find the cause of the disconnection which I believe it can be found by calling Call.Details.getDisconnectCause. The problem…
Hamed
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