택시타요외부콜 울산태화강콜 is a free Android app developed by 주에세텔. It falls under the category of Travel & Navigation, specifically Maps & GPS. The latest version of the app, v2.84, focuses on service stability improvements.

To use the app, follow these steps:

1. Launch 택시타요외부콜 울산(태화강콜)

2. Enter a 4-digit vehicle number

3. Log in (logging in will display the vehicle status. If it's not in external call mode, please create an external call status on the vehicle navigation system!)

4. Wait for a call!

5. When the acceptance/rejection window appears with a ringing sound, accept!

6. The passenger will be shown on the map. Start the trip by picking up the passenger!

Please note that no personal contact information of the developer is provided.