VoIP SIP SDK for Windows Download
Downloading VoIP SIP SDK for Windows 4.9.7
License Details
No per seat licensing
One time payment
Standard (voice only), Video, Multiline (up to 64 media lines), Video conference versions
Protocols Support
SIP
RTP
SDP
TCP
STUN
ICE
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
H.263
H.264
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
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