I am trying to set up the I2002,i2004 and i2050 soft phone at remote locations. I am successful in using a netgear vpn solution, it works well, i know nortel recommends using a vpn, but it is supposed to work without the need of a vpn. I can get the set to initialize but either one way audio or no audio, I know it is a simple fix, but i have no clue what that fix is. I have read and read trying to find the answer, i believe it is a port issue but i can no find the answer to get the phones to work without a vpn solution. any help would be appreciated.