Question : Cisco V-gateway w/ 4port FXO card & Cisco call manager setup

I was wondering if you may steer me in the correct direction to accomplish this task I have at hand.  
 
Here is my scenario:  I am installing another V-gateway Cisco 2811 in a new remote office.  The problem is that I am only being delivered 4 analog lines to be utilized w/ my 4 port FXO card in my Cisco 2811.  My question is can I configure this as a MGCP Gateway w/ a 4 port FXO card?  I have found a doc on Cisco’s website http://cisco.com/en/US/customer/products/sw/voicesw/ps556/products_tech_note09186a008017825e.shtml#tasks4x that pretty much explains how to do this, but I am not sure I am on the right path.  

My design is provider will hand off a 10MB ethernet internet connection which will come into my ASA 5510, which I will create a static VPN tunnel back to my corp network.  This tunnel will allow access to both our corp LAN & VOIP network.  I guess where I am confused is how will our Call Managers speak to the IP phones in the new office.  Should I set them up utilizing the MGCP & the calls will travel over the analog lines, or shall I simply utilize the 4 port FXO card specifically as analog devices in the remote office?  I know & will be setting up SRST on the Cisco 2811 as a fall back in the case our VPN tunnel drops, but I am struggling w/ the Call Manager setup & how it will talk to the remote office devices.  

Can someone please steer me in the correct direction & or provide me w/ a doc to do this?  

I thank you in advance.

Answer : Cisco V-gateway w/ 4port FXO card & Cisco call manager setup

>>Do I need to setup all 4 identifiers w/in the same device pool, & all point to the same DN & then add all of them to the Route Group<<

If you want them to all be answered by a single dn internally then yes. Each fxo endpoint needs an attendant dn assigned to it. They can all be the same one or different for each line. If it's part of a hunt group from the telco then normally it goes to a single dn.

They should be in the same device pool and part of a CSS that will allow them to reach the assigned attendant dn. In most cases I have a CSS that includes my phone partitions that I apply to any incoming line.

>>The only other question i have besides the couple above is on the Cisco 2811.  I currently have created the voice ports as dial-peer voice 1,2,3,&4 as pots.  Service mgcpapp, dest-pattern 9T, diect-inward-dail & then assigned each to its specific port<<

Only other thing on this would be the line "forward-digits all". This instructs it to forward all digits after "T" in your dial pattern to the telco.

Hope this helps
B