Point to Point verses VPN over dual T1

We have an office (Office A) running Ethernet connection 10mbps for data in one office
We have a second office (Office B) using dual T1 3mbps for data and use VOIP to connect to our phone system office A. also all our servers are all located at office A
We have decided to move some of our CAD users to this office B location and will need more speed since they will be working off our servers in office A
We are considering a point-to-point connection with Comcast from West Sacramento CA to Stockton CA at 20mbps. I’m looking for other point-to-point providers to compare with or any feedback on my plan
Is appreciated Thanks
jsarinanaI.T. ManagerAsked:
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Ken BooneNetwork ConsultantCommented:
Everything depends on how much money you want to spend, how much bandwidth needs are between locations, etc..

If you are using multiple CAD users to this office, the dual T1 is probably not going to be sufficient any longer.

When you say you have 10Mbps for data in office A - is this referring to Internet uplink speed?  I am assuming that it is.
So a vpn would be limited to the bandwidth available on this link and the new internet link at office b.  Then on top of that you have things going over the internet which is not controllable or guaranteed.    

The dedicated metro E pipe you are talking about will be the best option, but probably more expensive than the internet/vpn option.  What you will get here is reliability over traffic going over the internet.  Voice should be more reliable and consistent than over the internet.

Now will either option work yes.  You will have a better service over the dedicated 20M pipe but it will likely cost more.  So there is the tradeoff.

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jsarinanaI.T. ManagerAuthor Commented:
Thanks kenbooneij
understood, we need to go with a dedicated pipe and start at 20mbps. I have never purcahsed a dedicated pipe like this so this is why I'm asking this question. I also am looking for other providers if there are any in my areas.
jsarinanaI.T. ManagerAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for jsarinana's comment #a40199837

for the following reason:

Ken BooneNetwork ConsultantCommented:
The poster had two requests #1) other providers in his area, #2) feedback on his plan.
I took time  to give feedback on his plan so I I think at least half points are in order here instead of a complete 0.
Thank you.
jsarinanaI.T. ManagerAuthor Commented:
I ened up staying with MPLS connection, my issue wa that I did not have the routers configured properly and I upgraded to 10MBPS both ends
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