I have a central site and a new remote site setup with a VPN tunnel back to the central site. The central site houses the call manager cluster and the phones at the remote site are registered with the call manager via the VPN tunnel. The problem i have is i am unable to ping the CCM from the remote site even though the phones are registered. The phones and the CCM are in two different subnets although i dont think this should be a poblem. I have a local E1 at the remote site presenting my DDI range so my question is what could cause me to be unable to ping the call manager from the gateway even though the phones are registered. My thinking is that if i cannot ping the call manager from the gateway my voip dial-peer will not be able to pass digits to the CCM for call routing to take place.
The setup at the remote site is: Internet cloud--->ADSL Router-->Firewall-->3750 switch-->Router.
Also, is there any routing that needs to be done at the central site to enable this to work ?
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