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<font color="#FFFFFF" size="+3" face="Arial, Helvetica,
sans-serif">VoiceGuard™ Solution for VoIP Anti-Blockade </font>
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<span style="color:#2A5B6A;
font-size:16px;"><strong>VoiceGuard™ Solution for VoIP Anti-Blockade
</strong></span><br />
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<span style="font-size:14px; font-family:Arial, Helvetica,
sans-serif;">VoiceGuard™ Solution for VoIP
Anti-Blockade <br />1. Overview<br />Yahoo messenger,
Skype, Microsoft Messenger and Vonage offer a subscriber the ability to
"call" someone using Softphone/Gateway ATA/IPPhone/IAD. However, several
ISPs are blocking or degrading this service in order to force a consumer to
use a ISP sponsored service. States such as the UAE block this technology
outright while US corporations, such as Clearwire, claim that they might
degrade the quality of competing services by adding choppy and delayed
services.<br /><br />SpeedVoIP is a leader in circumventing VoIP blocking
imposed by ISP or Telco. For vision of Net Neutrality, VoiceGuard™ is
created to address a growing number of ISPs who either degrade or block
voice services over their networks. VoiceGuard™ gives choice back to
the subscribers or customers of ITSP. <br />2. Technology<br
/>※VGCP(Voice Guard Control Protocol)<br />VGCP is a proprietary layer 2
link protocol working at between IP stack and nic driver for VoIP
anti-blocking. The core patent-pending VGCP is industrys most
state-of-the-art voice service provider class security protocol whose
scalability and flexibility results in not to compromise voice quality and
overhead. VGCP controls and monitors full voice signaling and media flow
intelligently, meanwhile disguises sip and rtp packets into normal allowed
data packets such as DNS and TFTP, and makes two-way encryption and
decryption driven by user-customized policy. VGCP is fully transparent to
upper SIP proxy or UA which means VoiceGuard™ can work with any
3rd-party Softphone/ATA/Gateway/IPPhone/IADs and SIP proxy or server not
like some competitors which take effect on their own device and
softswitch.<br />※SidePass <br />Due to unique architecture, when
deploying VoiceGuard™ Border Controller(VGBC) at customer CPE side,
VGBC can work in the way similar to that of soho router, but it only
encrypts and decrypts SIP and RTP packets on link layer, not to handup
these packets to IP stack for forwarding while bypassing other data packets
originating from SIP terminals. In this scenario, peak throughput and
minimal CPU overhead can be easily achieved.<br />※TrafficDisturb <br
/>Current leading carrier-class VoIP blocking platform such as NarusInsight
can detect VoIP traffic with a special algorithmtraffic classification in
the dark which filters VoIP traffic based on behavioral-signature model.
Compared with previous one of payload-signature model, NarusInsight is more
sophisticated and robust. After deep study into traffic behavior of SIP UA,
Proxy and Registrar, VoiceGuard™ can real-time incorporate
light-weight traffic for puzzling and bypassing VoIP blocking system
without consuming more bandwidth and compromising voice quality. Even in
some circumstance, VoiceGuard™ can simulate traffic behavior of
universal data networking protocol such as OICQ, MSN and so on. <br />3.
Key Features<br
/>
Maximum call completion rate and maximum voice service duration <br
/> SIP
core standards and a variety of drafts supported <br
/>
Proprietary link layer protocol for controlling <br
/> Any
3rd-party Softphone/ATA/Gateway/IPPhone/IAD and SIP Proxy/Registrar/SBC
supported <br
/> The
most comprehensive codec including g.711/g.723/g.729ab/iLBC/gsm/speechX
supported <br
/>
Bypassing Narus and Verso platform detection <br
/>
Flexible user-customized encryption policy driven <br
/> Strict
call path protection and security up to termination <br
/> Only
simultaneous signaling/media/T.38 fax packet support across any firewall.
<br /> No
network or firewall modification is required. <br
/>
Excellent voice quality without any latency and performance compromise <br
/> Small
footprint terminal SDK . <br
/>
Available on all major platforms. <br />4. Technical Specification<br
/>• UDP <br />• TCP <br />• RTP/RTCP <br
/>• T.38 Fax <br />• SIP - RFC3261~3266 <br />•
STUN - RFC3489 <br />• Symmetric Response - RFC3581 <br />•
Dns/Tftp/Radius wrapper <br />5. How it works and deployment (please
see the
pic)
<br /><br />6. VoiceGuard™ Products ( Hardware and Software
Option)<br />• VoiceGuard™
Standalone Client (VGSC) for Windows – Perform encryption for
any brands of ATA/Softphone, such as Linksys PAP2 & X-lite<br
/>• VoiceGuard™ Client SDK (VGSDK)
- Incorporate voip anti-blocking capability into existing legacy softphone
and dialer running on Windows(Softphone/Dialer customization service is
also available with VGSDK)<strong> </strong><strong></strong><br
/>• VoiceGuard™ SPE VoIP Adapter
(VGSPE) – VoIP anti-blocking ATA device which is available in 1 - 4
FXS & FXO ports<br />•
VoiceGuard™ Border Controller (VGBC) – Support any brands of
ATA/Softphone for existing legacy ATAs, such as Linksys PAP2<br
/>• VoiceGuard™ Communicator
(VGCommunicator) – Fully SIP compatible Softphone/Dialer for PC2Phone
and PC2PC services<br /> <br />7. VoicePass™ Service Plan for
Residential and Business User<br /> <br />VoicePass™ is new kind
of service specially for bypassing VoIP blocking imposed by ISP for
residential and business user. It allows subscriber to use VoIP freely in
blockage region such as Middle East and Africa without compromising of
voice quality. Outgoing and incoming call is always available dependent
upon what ITSP or service provider supplies. With VoicePass™
subscription, zero configuration setup is at your finger. What you do only
is to enjoy cheap VoIP rate and crystal voice. 24x7 support assures
communication anytime and anywhere. <br /> <br />Key benefits: <br
/> <br
/> Work with
any ITSP and service provider<br
/> Minimal
overhead and crystal voice quality<br
/>
Easy-to-use and cost-effective<br
/> Zero
configuration setup<br
/> Surpass
conventional VPN scenario<br /><br /><br />cindy<br />SpeedVoIP
Communication Technology Co.,Ltd<br /> <br />Tel: +86 755 25504959 <br
/>Fax: +86 755 25336159<br />Mobile: +86 15099936503<br />Email: <a
href="mailto:cindy@speed-voip.com">cindy@speed-voip.com</a><br />MSN:
svoipsalessilver@hotmail.com<br />Skype: svoipsalessilver<br />Yahoo:
svoipsilver<br />Technical support: jlsnmp@163.com<br />Website: http://<a
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<td align="center"><font face="Verdana, Arial, Helvetica, sans-serif"
style="font-size: 10px;">SpeedVoIP Communication Technology Co.,Ltd •
600, 6th Avenue S.W. • Calgary, AL T2P 0S5</font></td>
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