VoIP SIP SDK soft phone solution

[passionatebalu]

I found this service provider useful for VOiP Phone service. It seems they offer Trial version before you actually buy.

VoIP SIP SDK is a soft phone sdk solution to quickly build voip softphone to dial and receive phone calls or add voip chat features in your software application.

Site:

voipsipsdk.com/

Features:

Dynamically loadable codecs
Registrar support
Play wav files into conversation
Record conversation into file
Hold/Retrieve call
Forward Call (Blind Call Transfer)
Transfer Call (Attended Transfer)
Mute Sound
VPN support
Authorization Id
Noise reduction
Auto gain
Jitter buffer parameters
Samples on Delphi, C#, VB, VB.NET, C++ 2005, C++ 6.0, HTML (SIP ActiveX)
Windowless samples on C++ and .NET
DTMF
Adaptive silence detection
Adaptive jitter buffer
STUN support
Comes as ActiveX control
Royalty free licensing
No Yearly/Monthly fee
IM interface
Codec disabling
Playback of different formats of WAV files
Software volume control

Available codecs:

G.711-ALaw
G.711-uLaw
G.726 (16k 24k 32k 40k)
G.729
G.729A
iLBC
LPC-10
Speex (Narrow, Wide)
g723.1

If you have any questions regarding the product, purchasing, licenses etc, please don't hesitate to contact us at [e-mail]

[wilsonlast]

Hello,
I downloaded and tried this SDK and compared to Ozeki VoIP SIP SDK. To tell the truth I tend to choose the Ozeki SDK if everything goes well because it is for .Net so it would be more suitable and flexible for me. It also allows to create telephony solutions.
The other deciding factor is the PBX support, and on the website of Ozeki SDK I found many guides for the various PBXs. It is also promising.
The website also includes additional information on VoIP technology and enlists several sample programs that will help you make the first steps.
Sample code is available on how to create a VB.NET softphone at: www.voip-sip-sdk.com/p_179-windows-forms-softphone-vb-net-voip.html
I hope I can help