Almost all of Cisco's SBCS market is the small and medium business space. Most, if not all of these SMB's have a Microsoft Small Business Server 2003 or 2008. It will be critical, In order for Cisco to be considered as a purchase option, that the UC-5x0 integrates well into these networks.
To that end, I see a lot of talk here about how to implement parts and pieces of this, but no guidance from Cisco, no labs and no best practices or other documentation. If I am wrong, please correct me.
I am currently stumbling through and validating these configurations myself, Once complete, I will post detailed recommendations. However, it would have been nice to have a lab to follow instead of having to learn from each mistake.
Some of the challanges include;
1. Where should the UC-540 be placed: As the gateway for QOS or behind a validated UC-5x0 router/security appliance combination
2. Should the Microsoft Windows Small Business Server handle DCHP (as Microsoft's documentation says it must), or must the UC-540 handle DHCP to prevent loss of features? What about a DHCP relay scheme?
3. Which device should handle DNS?
My documentation (and I recommend that any Cisco Lab/Best Practice guidence include it as well) will assume the following real-world scenario, the same which applies to a majority of my SMB clients;
1. A UC-540 device utilizing SIP for the cost savings
2. High Speed Internet with 5 static routable IP addresses
3. An existing Microsoft Small Business Server 2003/8
4. An additional Line of Business Application or Terminal Server that utilizes the same ports (i.e. TCP 80/443/3389) as the UC-540 and the SBS, but on seperate routable IP's (Making up crazy non-standard port redirections is not an option).
5. A employee who teleworks from various places that provide a seat and a network jack, which is not under our control (i.e. a employees home, a clients' office, or a telework center). This teleworker should use the built in VPN feature within the SPA or 7925G phones because we will not have administrative access to any third party's VPN/firewall.
Your thoughs appreciated.