Unanswered Question
Nov 12th, 2009
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Implemented MPLS VPN, however struggling with voice service. We have creted one common services VRF where all the services are teminated.Imported all other VRF routes into this VRF and vice versa. However the customers in diferent VRF's cannot call each other. we thought of seperate VRF for voice and it works.Or rather use the backbone for voice. Couldn't think of any other solution. Can this be resolved in any other way.

Have a Nice day!


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Reza Sharifi Thu, 11/12/2009 - 18:00
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All your voice resources including Call manager, unity server, voice VLANs and etc should be on your voice VRF. This way, people can call each other without going through your common services VRF. If there is a need for a subnet from voice VRF to talk to other VRFs or vice versa, then you can put that specific resource in the common services VRF (fusion VRF). In my opinion it is a lot easier to leak VRFs together then VRF to global routing table and vise versa.



Giuseppe Larosa Fri, 11/13/2009 - 03:20
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Hello Nishant,

I agree with Reza.

a dedicated voice VRF that includes servers and endpoints should be a good solution.

Hope to help


nishantmj Fri, 11/13/2009 - 14:45
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Hi Reza and Giuseppe

fusion VRF : This is great!

Did not notice fine details to wat n wher could we use it.

Well, If there are soft ip phones used then we can use this.


Have a nice day!



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