ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html> <HEAD> <META content="MSHTML 6.00.6000.16981" name=GENERATOR></HEAD> <BODY> <DIV> <TABLE id=AutoNumber1 style="border-collapse: collapse" borderColor=#111111 height=496 cellSpacing=0 cellPadding=2 width=631 border=0> <TBODY> <TR> <TD style="border-right: medium none; border-top: medium none; border-left: medium none; border-bottom: medium none" borderColor=#990033 width=627 bgColor=#990033 colSpan=3 height=101> <P align=center><IMG title="" height=120 alt="" src="http://www.anp.se/upload/Intertex/banner.gif" width=648 align=baseline border=0></P></TD></TR> <TR> <TD style="border-top: medium none; border-left: medium none; border-bottom: medium none" borderColor=#990033 width=40 bgColor=#808080 height=19>&nbsp;</TD> <TD style="border-top: medium none; border-bottom: medium none" borderColor=#990033 width=583 bgColor=#808080 colSpan=2 height=19> <P align=right><B><FONT face=Verdana color=#ffffff size=2>September 24, 2009</FONT></B></P></TD></TR> <TR> <TD style="border-top: medium none; border-left: 1px solid" borderColor=#990033 width=474 bgColor=#ffffff colSpan=2 height=88><B><FONT style="font-size: 9pt" face=Verdana><SPAN lang=EN-US>Ingate Knowledge Base - a vast resource for information about all things SIP &#8211; including security, VoIP, SIP trunking etc. - just for the reseller community.&nbsp; <I>Drill down for more info!</I></SPAN></FONT></B> <P class=MsoNormal style="margin-top: 7px; margin-bottom: 0px" align=left><FONT face=Verdana size=1><SPAN lang=EN-US><FONT color=#000000>To be removed from the Knowledge Base distribution, click </FONT><A href="##OptOutList##" target=_blank real src="##OptOutList##" ><FONT color=#000000>here</FONT></A><FONT color=#000000>. <BR>If you would like to forward this to a friend, click </FONT><A href="##TellAFriend##" target=_blank real src="##TellAFriend##" ><FONT color=#000000>here</FONT></A><FONT color=#000000>.</FONT></SPAN></FONT></P></TD> <TD style="border-right: 1px solid; border-top: medium none; border-left: 1px solid; border-bottom: medium none" borderColor=#990033 width=145 bgColor=#ffffff height=88> <P align=center><FONT color=#000000></FONT>&nbsp;</P></TD></TR> <TR> <TD style="border-right: 1px solid; border-left: 1px solid" borderColor=#990033 width=474 bgColor=#ffffff colSpan=2 height=60> <P class=MsoNormal align=justify><B><SPAN lang=EN-GB><FONT face=Verdana color=#990033 size=1>The introduction of SIP to a network brings the challenge of protecting the network from an untrusted network, and the opportunity to manage the routing of calls to a degree not possible with traditional telephony. This instalment of our continuing Knowledge Base will review some of the things that can be configured with an Ingate Enterprise Session Border Controller to address both the challenges and opportunities.</FONT></SPAN></B><FONT style="font-size: 9pt" face=Verdana><BR>&nbsp;</FONT></P></TD> <TD style="border-right: 1px solid; border-top: medium none; border-left: medium none; border-bottom: medium none" borderColor=#990033 width=145 bgColor=#ffffff height=91 rowSpan=2>&nbsp;</TD></TR> <TR> <TD style="border-left: 1px solid" borderColor=#990033 width=39 bgColor=#990033 height=27>&nbsp;</TD> <TD style="border-right: 1px solid; border-top: medium none" borderColor=#990033 width=436 bgColor=#990033 height=27><FONT face=Arial color=#ffffff><SPAN lang=EN-US style="font-size: 11pt; mso-bidi-font-size: 12.0pt"><FONT color=#000000><FONT face=Garamond><SPAN style="font-family: arial"><SPAN lang=EN-US style="font-size: 11pt; mso-bidi-font-size: 12.0pt"><FONT color=#000000><FONT face=Garamond><SPAN style="font-family: arial"><SPAN lang=EN-US style="font-size: 11pt; mso-bidi-font-size: 12.0pt"><FONT color=#000000><FONT face=Garamond> <P class=MsoNormal style="margin: 0cm 0cm 0pt"><B style="mso-bidi-font-weight: normal"><SPAN lang=EN-US style="font-size: 11pt; font-family: arial; mso-bidi-font-size: 12.0pt"><FONT color=#ffffff>E-SBCs as the Demarcation Point</FONT></SPAN></B></P></FONT></FONT></SPAN></SPAN></FONT></FONT></SPAN></SPAN></FONT></FONT></SPAN></FONT></TD></TR> <TR> <TD style="border-left: 1px solid" borderColor=#990033 width=39 bgColor=#ffffff height=1 rowSpan=6>&nbsp;</TD> <TD style="border-right: 1px solid" vAlign=top borderColor=#990033 width=436 bgColor=#ffffff height=1 rowSpan=6> <P class=MsoNormal style="margin-bottom: 0px"><FONT face=Verdana size=1><BR></FONT><FONT style="font-size: 9pt" face=Verdana></P> <P class=Section1 style="margin: 0.1pt 0cm" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana">We will be distributing the Ingate Knowledge Base on a biweekly basis beginning this week. </SPAN></P> <P class=Section1 style="margin: 0.1pt 0cm" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"></SPAN>&nbsp;</P> <P class=Section1 style="margin: 0.1pt 0cm" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana">Last time the Knowledge Base covered the tremendous benefit to service providers that SIP trunks offer: the ability to connect to one of many IP-PBXs.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>This capability allows them to ramp up business in a very short amount of time.</SPAN></P> <P class=Section1 style="margin: 0.1pt 0cm" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"></SPAN>&nbsp;</P> <P class=Section1 style="margin: 0.1pt 0cm" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana">This week we will address how Enterprise Session Border Controllers (E-SBCs) like the Ingate Firewall and SIParator serve as a demarcation point between the delivery network and the customer.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></SPAN></P> <P class=Section1 style="margin: 0.1pt 0cm" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"></SPAN></P><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana; mso-bidi-font-family: 'Trebuchet MS'"> <P class=MsoNormal style="margin: 0cm 0cm 0pt" align=justify><BR>Many service providers want a clear hand-off point between their network and the end customer. </SPAN><SPAN lang=EN-GB style="font-size: 8pt; font-family: verdana; mso-ansi-language: en-gb">Using an E-SBC as the demarcation point, the ITSP can see both the LAN and the WAN side of the customers&#8217; networks.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>This is a powerful troubleshooting tool as it aids in determining where messaging</SPAN><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"> and/or media is reaching.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>The E-SBC can also show detailed logging information, including debug messages which can assist in troubleshooting issues throughout the enterprise network.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>In this way the E-SBC can gather the statistics necessary to monitor service delivery to maintain Quality of Service.</SPAN></P> <P class=MsoNormal style="margin: 0cm 0cm 0pt" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"></SPAN></P><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"> <P class=MsoNormal style="margin: 0cm 0cm 0pt" align=justify><BR>Ingate products also have packet capture capabilities on all interfaces (LAN and WAN) in the pcap-format for evaluation <SPAN style="mso-spacerun: yes">&nbsp;</SPAN>in programs such as <SPAN style="background: yellow; mso-highlight: yellow"><FONT style="background-color: #ffffff">Wireshark</FONT></SPAN>.<BR><BR></SPAN><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana; mso-bidi-font-family: 'Trebuchet MS'">The demarcation point can also serve as the first line of defense, as Ingate Firewalls and SIParators are designed to secure applications based on SIP as well protect the network.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>They can inspect the SIP signaling and control the media ports.<SPAN style="mso-spacerun: yes">&nbsp; </SPAN>They can also add encryption to signaling and media (using TLS and SRTP), creating greater privacy.</SPAN><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"></SPAN></P> <P class=MsoCommentText style="margin: 0cm 0cm 0pt" align=justify><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana"></SPAN></P><SPAN lang=EN-US style="font-size: 8pt; color: black; font-family: verdana"> <P class=MsoNormal style="margin: 0cm 0cm 0pt" align=justify><BR>Placed at the customer edge, Ingate provides a demarcation point, security protection and NAT traversal solution all in one solution.<BR></SPAN></FONT><FONT face=Verdana size=1>&nbsp;</FONT></P></TD> <TD style="border-right: 1px solid; border-top: medium none; border-left: 1px solid; border-bottom: medium none" borderColor=#990033 width=145 bgColor=#ffffff height=28> <P align=center>&nbsp;</P></TD></TR> <TR> <TD style="border-right: 1px solid; border-top: medium none; border-left: 1px solid; border-bottom: medium none" borderColor=#990033 width=145 bgColor=#ffffff height=189>&nbsp;</TD></TR> <TR> <TD style="border-right: 1px solid; border-top: medium none; border-left: 1px solid; border-bottom: medium none" borderColor=#990033 width=145 bgColor=#990033 height=53> <P align=center><B><FONT face=Verdana size=1><SPAN lang=EN-US><FONT color=#ffffff>We would like to hear from you. <BR>Let us know of any topics you&#8217;d like to see addressed in future issues of the Knowledge Base series by writing to </FONT><A style="color: #ffffff; text-decoration: underline; text-underline: single" href="mailto:sofia@ingate.com">sofia@ingate.com</A><FONT color=#ffffff> or <A style="color: #ffffff; text-decoration: underline; text-underline: single" href="mailto:steve@ingate.com">steve@ingate.com</A>.</FONT></SPAN></FONT></B></P></TD></TR> <TR> <TD style="border-right: 1px solid; border-top: medium none; border-left: 1px solid; border-bottom: medium none" borderColor=#990033 width=145 bgColor=#ffffff height=4>&nbsp;</TD></TR> <TR> <TD style="border-right: 1px solid; border-top: medium none; border-left: 1px solid" borderColor=#990033 width=145 bgColor=#ffffff height=1>&nbsp;</TD></TR> <TR> <TD style="border-right: 1px solid; border-top: medium none; border-left: 1px solid" borderColor=#990033 width=145 bgColor=#ffffff height=1>&nbsp;</TD></TR> <TR> <TD style="border-left: 1px solid" borderColor=#990033 width=39 bgColor=#990033 height=26>&nbsp;</TD> <TD style="border-right: 1px solid" borderColor=#990033 width=436 bgColor=#990033 height=26> <P class=MsoNormal align=left><SPAN lang=en-us style="font-weight: 700; font-size: 10pt; text-transform: uppercase; color: #ffffff; font-family: arial">Want more information?</SPAN></P></TD> <TD style="border-right: 1px solid; border-left: 1px solid" borderColor=#990033 width=145 bgColor=#ffffff height=86 rowSpan=2> <P align=right>&nbsp;</P></TD></TR> <TR> <TD style="border-left: 1px solid" borderColor=#990033 width=39 bgColor=#ffffff height=59>&nbsp;</TD> <TD style="border-right: 1px solid" borderColor=#990033 width=436 bgColor=#ffffff height=59><SPAN lang=EN-US style="font-size: 8pt; font-family: verdana">Follow the link to find out more </SPAN> <P class=MsoNormal style="margin-top: 0px; margin-bottom: 0px"><FONT face=Verdana size=1><SPAN lang=EN-US style="color: #0000fe"><A style="color: blue; text-decoration: underline; text-underline: single" href="http://www.ingate.com/files/white_paper_What_is_SIP_Trunking_A.pdf">http://www.ingate.com/files/white_paper_What_is_SIP_Trunking_A.pdf</A></SPAN></FONT> <P class=MsoNormal style="margin-top: 0px; margin-bottom: 0px"> <P class=MsoNormal style="margin-top: 0px; margin-bottom: 0px"><FONT face=Verdana size=1>Please visit the Ingate SIP Trunking at Community</FONT><FONT face=Verdana color=red><SPAN style="color: red"> <A style="color: blue; text-decoration: underline; text-underline: single" href="http://sip-trunking.tmcnet.com/"><SPAN title=http://sip-trunking.tmcnet.com><FONT title=http://sip-trunking.tmcnet.com/ color=#000000 size=1></FONT><A title=http://sip-trunking.tmcnet.com/ style="text-decoration: underline" href="http://sip-trunking.tmcnet.com/"><FONT title=http://sip-trunking.tmcnet.com/ color=#000000 size=1>http</FONT></A></SPAN></SPAN></FONT><FONT face=Verdana color=red><SPAN style="color: red"><A title=http://sip-trunking.tmcnet.com/ style="text-decoration: underline" href="http://sip-trunking.tmcnet.com/"><FONT title=http://sip-trunking.tmcnet.com/ color=#000000 size=1><SPAN title=http://sip-trunking.tmcnet.com>://sip-trunking.tmcnet.com/</SPAN></FONT></A></SPAN></FONT></P></TD></TR> <TR> <TD style="border-top: 1px solid; border-left: 1px solid; border-bottom: 1px solid" borderColor=#990033 width=626 bgColor=#990033 colSpan=3 height=34> <P align=center><STRONG><FONT face=Verdana color=#ffffff size=1>Ingate Systems Inc.&nbsp;&nbsp; &nbsp;l&nbsp;&nbsp;&nbsp; </FONT><FONT class=text face=Verdana size=1><FONT face=Verdana color=#ffffff size=1>Ph: +1-603-883-6569</FONT></FONT><FONT face=Verdana color=#ffffff size=1>&nbsp;&nbsp; &nbsp;l&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT face=Verdana size=1><A href="mailto:info@ingate.com"><FONT color=#ffffff>info@ingate.com</FONT></A></FONT></STRONG><FONT face=Verdana color=#ffffff size=1><STRONG>&nbsp;&nbsp; &nbsp;l&nbsp;&nbsp;&nbsp; <A href="http://www.ingate.com">www.ingate.com</A></STRONG></FONT></P></TD></TR> <TR> <TD style="border-top: 1px solid" width=40 bgColor=#ffffff height=54>&nbsp;</TD> <TD style="border-top: 1px solid" width=437 bgColor=#ffffff height=54></TD> <TD style="border-top: 1px solid" width=146 bgColor=#ffffff height=54>&nbsp;</TD></TR></TBODY> </TABLE> </DIV> </BODY> </html>