For political & economic reasons, ISP may block VoIP in your country. To protect your VoIP business & profit, SpeedVoIP Communication Technology Co., Ltd. is providing patent Security VoIP Softphone/Dialer, which circumvent VoIP blocking.
Fully SIP compatible softphone/dialer for PC2Phone and PC2PC services.
VoiceGuard™ softphone/dialer features:
•        VoiceGuard™ VoIP anti-blocking engine embedded, widely used in UAE , Asia & Africa ISP blocking VoIP market
•        Supports branding with custom skin and logo
•        Compatible with Windows 98/Me/2000/XP/2003/Vista
•        NAT/Firewall traversal feature
•        Works with any 3rd party SIP Server
•        Supports SIP outbound proxy
•        Displays callers account balance
•        Displays call credit time
•        Embed Flash advertisements
•        DTMF tones can be integrated with voice mail or other tone driven systems
•        Multilanguage user interface
•        Integration with clients website
•        Voice Activity Detection Voice Activity Detection
•        Automatic Echo Cancellation
•        Automatic jitter buffer adjustment
•        Last number Redial
•        History of 10 last dialed numbers
•        Quick dial user list
•        Quick provision for customers, only user name and password required
Other products:
•        VoiceGuard™ SPE VoIP Adapter(VGSPE) – hardware, VoIP anti-blocking ATA, model 1 - 4 FXS & FXO ports
•        VoiceGuard™ Border Controller(VGBC) – hardware, support any brands ATA/Softphone, such as Linksys PAP2
•        VoiceGuard™ Standalone Client(VGSC) for Windows – software, support any brands ATA/Softphone, such as Linksys PAP2 & X-lite
•        VoiceGuard™ Client SDK(VGSDK) - incorporate voip anti-blocking capability into existing legacy softphone and dialer running on Windows, accept Softphone/Dialer customization order embedded with VGSDK

For more inform, pls review: www.speed-voip.com

Lynn
MSN: svoipsales@hotmail.com
Skype: svoipsales