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<DIV><FONT face=Arial size=2>The following is information that I have rec'd
regarding the installation of a 7961 at someone's house who is using cable or
DSL. Is there anything else that we might need to think about? Thank
you!</FONT></DIV>
<DIV><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Notes from Cisco
Engineer:</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The remote equipment at
the home office would consist of a Cisco 871 router and a Cisco phone with a
power block. The Cisco 871 would function as the home office’s firewall
and router (and would connect to either a cable modem or a DSL modem depending
on the site). The router would be configured to have an IPSec tunnel back
to the office network (most likely configured off of your existing
concentrator). The remote Cisco 871 would be configured with DHCP and have
the TFTP scope option set to tell all devices the IP address of the Call Manager
server (note the router has a built-in four port switch).<?xml:namespace prefix
= o ns = "urn:schemas-microsoft-com:office:office"
/><o:p></o:p></SPAN></FONT></DIV>
<DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">At that point, the IP
Phone would register normally to the Call Manager servers using the IPSec tunnel
as it’s communication path. The keepalives from the phone to the CM
servers would keep the IPSec tunnel up and running
24/7.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT><FONT
face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The restrictions on
this type of deployment are:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">
-must use G729 codec due to bandwidth restrictions<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">
-extremely limited QoS control since we are going across the
Internet<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">
-security policies need to be visited since the remote office would have access
to the corporate internal network (this one is a
biggie)<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">
-sub-issue regarding calling from home office to home office. This is
doable but adds additional security and deployment
issues.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">
-need to consider the standard IT management overhead associated with supporting
home equipment.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thank
you!<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P></DIV></DIV></BODY></HTML>