Features of VoIP SIP SDK for Windows

Quick facts about ABTO Software VoIP SIP SDK for Windows:

License Details

  • No yearly/monthly fee
  • No limitation for number of users, channels, or products

Protocols Support

  • SIP (Session Initiation Protocol)
  • RTP (Real-time Transport Protocol)
  • SDP (Session Description Protocol)
  • TCP (Transmission Control Protocol) /UDP (User Datagram Protocol)
  • STUN (Session Traversal Utilities for NAT)
  • ICE (Interactive Connectivity Establishment)

Development Features

  • ActiveX, COM, and plain dll files
  • support of SIP DLL SDK (via native dll interface)
  • NAT (Network Address Translation)  support
  • Encryption on the basis of sRTP, DLS, and DTLS
  • DTMF (Dual Tone Multi Frequency) support
  • SIP Authentication
  • Codecs management
  • Basic samples (C#, C++, VB.NET, VB 6.0, and Delphi)
  • Custom samples (multiple SIP accounts, IVR, presence, and voice mail)
  • Log file on/off setting

End User Features

  • All versions of Windows OS, including Windows 8
  • Support of all kinds of Internet connections
  • SIP Registrar support (compatibility with most of SIP servers including Asterisk)
  • Works under firewall
  • Multiple sip accounts registration
  • Multiline support
  • Multi-party voice conference
  • Video call support
  • IM interface
  • Selecting of media input and output devices
  • Custom ringtone support
  • Configuration saving and loading

Conversation Specific Features

  • Calls operations:

- Hold/Retrieve Call
- Forward Call (Blind Call Transfer)
- Transfer Call (Attended Transfer)

  • Noise reduction (supression)

- AGC (Auto gain controller) support
- Adaptive silence detection
- Adaptive jitter buffer

  • Software volume control (including Mute Sound)
  • Playing file into conversation
  • Recording conversation into file
  • Redirection of calls to other phone lines
  • Call history and address book ready

Available Codecs

  • G.711 (ALaw, muLaw)
  • G.726 (16k 24k 32k 40k)
  • G.729A
  • G.723
  • iLBC
  • LPC-10
  • Speex (Narrow, Wide)
  • L16
  • RFC4733 DTMF tones
  • GSM

If you need video call support please proceed to Video VoIP SIP SDK features.


Questions?

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.