[cisco-voip] Remote 7961 Phone at Someone's House - Notes for Setup!

[Justin Steinberg]

If you are planning to deploy a lot of these setups you should ask your SE
about the phone proxy product.

http://www.cisco.com/en/US/products/ps7057/index.html



On 10/25/06, Steve Miller <millerman1 at cox.net> wrote:
>
>  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!
>
> Notes from Cisco Engineer:
>
> 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).
>
>  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.
>
>  The restrictions on this type of deployment are:
>
>                         -must use G729 codec due to bandwidth restrictions
>
>                         -extremely limited QoS control since we are going
> across the Internet
>
>                         -security policies need to be visited since the
> remote office would have access to the corporate internal network (this one
> is a biggie)
>
>                                     -sub-issue regarding calling from home
> office to home office.  This is doable but adds additional security and
> deployment issues.
>
>                         -need to consider the standard IT management
> overhead associated with supporting home equipment.
>
>
>
> Thank you!
>
>
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20061026/39c2ac44/attachment-0001.html