Internet Protocol Telephony

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" rowspan="2" width=18.125% BGCOLOR="#990000" TEXT="#F7F7FF"> <div> <A HREF="video_conferencing.htm" TARGET="_top" TITLE="Video Conferencing"><IMG SRC="01114140.png" border=0 width="20" height="20" ALT="previous" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A>   <A HREF="mobicel.htm" TARGET="_top" TITLE="Tadiran"><IMG SRC="01014140.png" border=0 width="20" height="20" ALT="next" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A>     <A HREF="products___services.htm" TARGET="_top" TITLE="Products Services"><IMG SRC="00f14140.png" border=0 width="20" height="20" ALT="up" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></A>  <IMG BORDER="0" SRC="1x1.gif" HEIGHT="20" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" WIDTH="20"></div> <div> <A HREF="index.htm" TARGET="_top" TITLE="Brooks Communication, Inc. 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As a result, we perceive voice telephone calls to be real time, with no interruptions, and with the ability for both parties to talk at the same time (full duplex).</div> </tD> </tR> </TABLE></div> <bR> <div> <B>How well does Voice over IP work?</B></div> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="618" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 271 WIDTH="606"><div> Compromises must be made when transmitting voice signals over IP transmission medium. Current standards require about 10 ms to fill each packet and about 10 ms to empty the packet at the other end.  A good latency time for the Internet is 50-60 ms.  This gives a total latency of 70-80 ms.  At this level conversations over IP are quite good - about as good as the quality on a cell phone call.  You probably can't expect full duplex operation and you shouldn't expect to be able to use a speakerphone effectively.  At 100-120 ms of latency you can start to have echoes on your conversation.  These are usually annoying but do not interfere with the conversation.  Greater than 120 ms of latency generally results in dropped syllables and can make conversation difficult to impossible.</div> <bR> <div> If you implement IP Telephony over a private network where latency time can be controlled and where voice packets can be given priority over data packets, results can be quite good.  If IP Telephony is implemented over the Internet, results can vary from good to abysmal - all depending upon the route taken by individual packets and the overall speed of the Internet at a given time.</div> </tD> </tR> </TABLE></div> <bR> <div> <B>IP Telephone Applications</B></div> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="618" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 827 WIDTH="606"><div> <B>Converged Communications Platforms</B> unify technologies such as wireless, cellular, LAN/WAN, Internet and PDA into a single enterprise.  With analog, digital, wireless and Voice over IP (VoIP) built into the same platform, you have the power to choose from a variety of solutions at a pace that's right for your organization.  Whether you want to blend traditional and IP solutions or deploy full IP, we offer a collection of applications and endpoints that will enable you to harness the power and benefits of Voice over IP. </div> <bR> <div> <B>Seamlessly connecting multiple locations</B> together has never been easier or more cost-effective. The Inter-Tel Converged Communications Platforms are designed around a distributed open architecture for maximum efficiency and reliability. Whether you have 2 sites or 60, all of your locations can interact in a completely seamless fashion over your IP data network. </div> <bR> <div> <B>Your phone system is everywhere</B> you want it to be.  With feature-rich, IP-based endpoints, your data network connects with your remote employees, satellite offices and warehouse facilities as if they were all in the same building. Because IP phones are fully integrated with Inter-Tel's Converged Communications Platforms, users anywhere have access to the functions of the phone system such as transferring calls, conferencing, accessing voice mail, record-a-call and much more.  Even call center agents working offsite do not sacrifice functionality.  They can be part of hunt groups or call routing patterns, and supervisors can monitor their calls as if they were in the office.  Additionally, the IP PhonePlus and IP SoftPhone eliminate the need for a separate phone system in each location, and they provide you with function, mobility and flexibility like you've never experienced. </div> <bR> <div> Brooks Communication is committed to delivering <B>standards-based IP telephony solutions</B>. Inter-Tel's Converged Communications Systems use standard Media Gateway Control Protocol (MGCP) to communicate with third-party gateways.  This allows Call Processing to use remote gateways as access points for inbound and outbound call functions.  MGCP also provides local dial tone and 911 capabilities to remotely deployed IP phones.  Trunk interfaces can be deployed remotely, without a remote telephone system.  Inter-Tel's SIP (Session Initiation Protocol) Server provides a foundation for standards-based communications within a converged IP environment.  SIP allows Call Processing to communicate with products, such as the Cisco 7960 IP Phone, Cisco voice-enabled routers, Windows® XP, Microsoft Passport® network and a series of upcoming Inter-Tel SIP-enabled IP phones.<FONT SIZE="3" COLOR="#990000" FACE="Arial" > </FONT></div> <bR> <div> <B>Unified Communicator enables your mobile and remote associates</B> to have full control of their Inter-Tel endpoints from virtually anywhere through multiple user interfaces including:  Speech recognition, touchtone, PC Web browser and Wireless Application Protocol (WAP) devices such as cellular phones and handheld computers (PDAs). You can also forward calls to cells phones, pagers, voice mail and alternate numbers so important matters can be handled anytime, anywhere.  Increase your efficiency with access your Personal Address Book and the System Directory, control your availability and location, check availability of fellow associates and initiate calls from a Web browser or WAP-enabled device.</div> <bR> <div> For more information click on <A HREF="axxess_phones.htm" TARGET="_top" TITLE="Endpoints">Inter-tel IP End Points</A></div> </tD> </tR> </TABLE></div> <bR> </td> </tr></table></body>