Conn an ATA186 through VPN w/ Gatekeeper

Hello All,

I am trying to connect an Cisco ATA-186 with a Gatekeeper and as my aDSL provider does not give me a public fix IP address I am borrowing them from a local ISP through a VPN.

Description:

. connect to the VPN and assign a public IP address to the comp that is connecting to the VPN. Then I assign another IP to the ATA-186. Now it has a public fix IP.

. I ping it from an outside server, connections go all ok. I can access the configuration page. But when I try to place a call from the ATA to the GK or vice-versa, things do not go well.

Any clues?

PS.: we don’t know if the VPN tunnel is leting UDP transfers to pass. This is a variable.

Thank you for your time and please reply also to my e-mail,

Rom Pereira