Kotlin app for Android

I need an app that acts like an API to dial numbers, hang up, and send SMS messages. The app will listen on the USB port for JSON messages.

Dial a number

Message: {"action":"dial", "number":"+6155555555"}

Reply: {"status":"OK"} or {"status":"failed"}

Dial a USSD code

Message: {"action":"dial", "number":"*123*45678*90#"}

Reply: {"status":"OK"} or {"status":"failed"}

Hang up / end call

Message: {"action":"end"}

Reply: {"status":"OK"} or {"status":"failed"}

Send SMS message

Message: {"action":"sms", "number":"+6155555555","msg":"Text message"}

Reply: {"status":"OK"} or {"status":"failed"}

The app will:

1. Execute the intent (dialling a number, ending call, sending SMS)

2. Display received messages on the screen (just scrolling text)

3. Save a log to a file on the phone

The app will be installed via APK (no intention to distribute on the app store).

Phones are all Samsung Galaxy A20 (Android 9, USB-C).

Skills: Android, Mobile App Development, Kotlin

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About the Employer:
( 0 reviews ) Toorak, Fiji

Project ID: #25640243

9 freelancers are bidding on average $233 for this job


Hi there! I've read the details you mentioned and I'm interested in working on this app at very fair cost with great quality! If you give us your few minutes for the chat then we can discuss some important points abou More

$500 AUD in 5 days
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$300 AUD in 3 days
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$160 AUD in 4 days
(27 Reviews)

Hi there, I can develop App that act like an API to dial numbers, hang up, and send SMS messages. I've 7+ years of experience in developing both Native & Hybrid/Cross Platform - iOS & Android Mobile Apps, have strong More

$250 AUD in 30 days
(2 Reviews)

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$250 AUD in 7 days
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$250 AUD in 20 days
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