Use our order form with desired support period. Our sales manager will provide you with a price quote and link to buy the license.
Our solution is a commercial Software Development Kit to quickly build a custom softphone solution for your company or distribute it to your customers under your brand.
You should consider buying sip service from one of the providers. ABTO Software offers a solution to build sip client that can be used with such sip account.
Please contact us to receive webphone version details.
Yes, after purchasing our license you are free to distribute as many copies of your softphone on the basis of our SDK as you need with no additional payment.
Go to “c:\Program Files\Abto, LLC\VoIP VIDEO SIP SDK\binary\” folder and start one of the available ready-to-use sample softphones. For example, you can start our MlSampleWindowCPP.exe. You can edit this sample “c:\Program Files\Abto, LLC\VoIP VIDEO SIP SDK\MlSampleWindowCPP”.
Please contact us and we will provide you with all details.
Please contact our representative and will give you another trial license.
a. “Run as administrator” ‘Command Promt’ application b. Type command   cd “c:\Program Files\Abto, LLC\VoIP VIDEO SIP SDK\binary” c. Type command   regsvr32 SIPVoipSDK.dll
a.    For successful registration you need following files (from SDKs folder “binary”): avcodec-51.dll avutil-49.dll cryptopp.dll Microsoft.VC80.CRT.manifest msvcp80.dll msvcr80.dll SIPVoIPSDK.dll swscale-0.dll b.    For successful work you also need (from SDKs folder “binary”): _recordMask.wav codec_*.dll                         <-select needed Interop.SIPVoipSDK.dll lame_enc.dll libspandsp.dll Make sure that codecs dll’s are in the same folder as SIPVoIPSDK.dll.
a. Replace files in “c:\Program Files\Abto, LLC\VoIP VIDEO SIP SDK\binary\Skin” or “c:\Program Files\Abto, LLC\VoIP VIDEO SIP SDK\binary\SkinVideo” b. Edit the file “c:\Program Files\Abto, LLC\VoIP VIDEO SIP SDK\binary\MlSampleSkinCPP.skin” If you need more complex changes, please contact us .
Yes, absolutely. You can call to other sipphones using our application.
Please check the codecs list on our Features list or open Settings of the softphone. Please contact us to consult about using other codecs.
The SDK allows to work without audio devices on machine. All you need to do is to find line “LocalAudioEnabled=1″ in phoneCfg.ini and replace it with “LocalAudioEnabled=0″ or via source code set to 0 property value IConfig::LocalAudioEnabled.
First of all, please check whether all registration credential and other settings are right are correct. Also please check firewall settings and try different network interface in the softphone settings. Contact us for details.
Please try different network interface in the softphone settings.
Please go to Settings of the softphone and try different Echo cancellation, Noise reduction, and Auto gain control settings.
Contact us and we will provide you with a solution to convert mp3 file to WAV file that can be used with our softhpone.
If you would like to play audio buffer instead of wav file – yes, SDK supports this. Look at the method IAbtoPhone: PlayBuffer, and sample application MlSampleWindowCPP with example how to use it.
a. Establish VPN connection. You need to setup one more system wide “Local area connection”. We recommend to solve this task using OpenVPN (look more ) b. Start and configure our sipphone with VPN settings. This task is not very difficult. You have just set SDK’s network interface setting equal to connection name, created on previous stage. Contact us if you have problems with doing these tasks.
Please contact us to try our T38 Modem solution.
Please send us a detailed description of your business need and we will help you with your project.


Development Environments:

  • Visual C++ / C++ / C# .NET
  • VB.NET / VB 6.0
  • Java
  • JavaScript / HTML / HTML5
  • Flash
  • Borland Delphi

Company details:

ABTO Software is the only owner and distributor of VoIP SIP SDK. The company also develops other products and offers software development services. Read more on www.abtosoftware.com.