Present You

Call Forwarding

Never miss calls from your friends. Your calls can reach you anywhere in the world, whether on your cellphone, in the office or at home. Ring multiple phone numbers simultaneously or in any order.

Network Reliability

Derboss mobile uses multiple carriers in order to ensure successful forwarding of your calls. Our system is programmed to find the best carrier for a crystal clear connection, so you can communicate with your friend. If one carrier isn't sending a call through, our network automatically switches to another carrier.

SIP with PSTN Failover

If your SIP device misses an incoming call, our network will instantly forward that call to the next destination you specify. Such as another SIP device or PSTN phone number. This allows you have a comprehensive solution that combines the savings and flexibility of SIP with the reliability of PSTN.

Perfect Sync

Stay in control with perfect synchronization between mobile and desktop devices.

Completely Free

Enjoy derboss mobile to derboss mobile for Free anytime and anywhere you stay.


Get rewarded for everything you do.

NEW feature

  • Free Malaysia Calls

    Enjoy unlimited call to mobile or landline to keep in touch with friends and family.

  • Real Time Reporting

    Call cost information, destination, rate call, balance information, last calls log, redial or any status logs instantly viewed detail to your derboss mobile phone number. You can check it also in our member area on the website.

  • Virtual Number

    Set up a Virtual Number so friends and family in other countries can reach you for the price of a local call

  • Conversation recording

    Record all or some of your incoming calls. Recorded calls are stored in call detail records and can be played or downloaded at any time. Recorded calls can be activated instantly for an additional charge.

  • Derboss Mobile Extension

    Log in derboss mobile phone number anywhere you use smartphone

  • High Quality

    Derboss mobile is using the Crystal Clear Voice technology of your phone calls to cellphone or land line by priority voice packets without slowing down the rest of your network.

  • Virtual Number

    Set up a Virtual Number so friends and family in other countries can reach you for the price of a local call

  • Callback Functionality

    Even you don’t have data connection, Wi-Fi or internet connection, you still can make a call (the selected numbers will be connected via cellular calls).

  • Application Program Interface

    Use our remote API to retrieve your real-time call record information. Automatically load your call records into your back-office reporting systems so you can access the information in a way that is most compatible with your current practices.

think about

why derbossapp best

Why to choose us
  • Different Call Types

    Derboss Mobile offers three call options. Here's how you can get the most out of your app:

  • VoIP Call

    This is the standard calling option; your call gets connected right away. You'll need a working 3G/WiFi atleast 2Mbps connection to use this call option. You will be charged the regular rates, no extra costs or hidden charges. Derboss mobile to derboss mobile is FREE.

  • Call Back (use the callback function in mobile app)

    The Call Back option is a nice way to stay in touch with friends and family, even if the internet connection you're using isn't particularly strong. With a weaker 3G/WiFi connection, or if you would like to use as little data as possible, you can set up a Call Back call through the derboss mobile. We'll set up a call to your phone first, and then connect you with your contact. You will be charged for both the A-side and B-side. No setup fee will be apply on this.

  • Offline Callback Function

    No internet required to make a call. When user call to access number, the call will be hangup immediately. After that server will call back to the user SIM card and request for the caller number. Both call will be charge from the account according to the tariff. While no charge on the user SIM Card.

how it works

watch video


How to Use Derboss Mobile

1. Download and Install
Visit Google Play or Apple Store, search Derboss Mobile.
2. Make your first Derboss Mobile call
For a call to any online Derboss Mobile user, simply enter the username in the textbox and click the dial button. For a call to any regular phone, enter the desired number in the textbox and click the dial-button. For all other calls, you will be asked to buy credits first. Please note that when you call a number (even if it's local) you should always dial 00 + countrycode + areacode + subscriber number)


How to Use Derboss Mobile

You can use Derboss Mobile in various ways to stay in touch at the lowest rates possible! Choose one of the options below to start using Derboss for cheap calls from your Computer:

Use the Derboss Mobile software:

• Call directly using the Derboss Mobile software. Click hereto download

• Download the Derboss Mobile Software The software is free to download and you can always get the latest version here. If you have any problems using Derboss mobile, please first make sure that you are using the most recent version of the software. To download the Derboss Mobile to your computer, simply click the download link. Save the installation file to your computer. Be sure to remember where you saved the file (for instance the Desktop).

• Installation

Double-click the installation file you just downloaded to start installing the Derboss Mobile on your computer. Derboss Mobile starts automatically each time you start windows. With the Derboss Mobile always running, other users will be more likely to find you online. You can change these settings at any time from the Derboss Mobile program by selecting "options".

SIP Device

How to Use Derboss Mobile

Use your own SIP software client • Find your SIP settings here Use Derboss Mobile in your browser window: • If you don't want to install our DerBoss software, you can set up a DerBoss call directly, DerBoss offers an in-browser solution for calling: Phone-2-Phone • Alternatively, you can also use DerBoss BrowserCalls directly in your Chrome or Mozilla FireFox browser. You will find the BrowserCalls option in your myaccount and at the bottom right-side of our site. Launch Now.

take a look



are you surrprised

Call Rate (Per Minutes)


  • Country Price (USD)

    $ 0.3704


    $ 0.1476


    $ 0.009


    $ 0.027


    $ 0.0966

  • Check all other rate



South America

  • Country Price (USD)

    $ 0.0196


    $ 0.014


    $ 0.1326


    $ 0.0564


    $ 0.0338

  • Check all other rate

North America

  • Country Price (USD)

    $  0.3592


    $  0.0922


    $ 0.0136

  • USA

    $ 0.0214


    $ 0.0044

  • Check all other rate


  • Country Price (USD)

    $ 0.0578


    $ 0.6442


    $ 0.5726


    $ 0.5952


    $ 0.8644

  • Check all other rate


Download the free DerBoss application and start your free* calls immediately.

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help & support

Minimum System Requirements:

  • PC running Windows 7, Vista, XP, 2000 (with SP2)
  • 300 MHz processor
  • 128 MB RAM
  • 10 MB free disk space on your hard drive
  • Sound Card and a headset
  • Internet Connection broadband: Cable, DSL, with minimum 64 kbit/s up/downstream)

Improve Sound Quality

To get the best possible sound quality, we highly recommend you try the following:

  • Use a headset with a built in microphone. Headsets are available for purchase at most computer retailers and will dramatically improve sound quality.
  • Tell your friend to get a headset. Note that voice quality is affected by the equipment on both sides of the conversation. The best way to ensure high quality sound is to have a headset on both ends of the conversation.

Recommended System Requirements:

  • PC running Windows 7, Vista, XP, 2000 (with SP2)
  • 1 GHz processor
  • 256 MB RAM
  • 30 MB free space on your hard drive
  • Full duplex sound card (most sound cards made after 1998), headset
  • Cable, DSL or equivalent broadband connection to Internet

smart business owner

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20-05, 20th Floor,
City Plaza Tower,
No. 21, Jalan Tebrau,
80300 Johor Bahru, Johor,

+6698 55514 68

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