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Network Design

I have to design a network with SIP provider and PBX system.

 

All calls are routed via Windstream using the phone system gateway.

Now we want to set call routing in such a way that internet calls to rest of the offices are routed via Cisco 2911 & ATT 

Now Cisco 2921 will be doing all the routing , but it has a default gateway for ATT , which will allow the phone system to see rest of the phone systems available on MPLS but how will they route the outbound call using the SIP provider Windstream. 

 

I have attached a pdf showing current design and proposed. Can anyone help me out with that 

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Super Bronze

duplicate post

duplicate post

Hall of Fame Super Gold

Duplicate posts.  :P Go here:

Duplicate posts.  :P

 

Go here:  http://supportforums.cisco.com/discussion/12163976/network-design-voip

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