Hi Rodney, > I dont have a cisco acount yet > can some bady hel me with the > ata18x-v2-16-030401a-1.zip file. You will need a PC running Windows. 1. Unzip it. 2. Read the text file ata186us.txt 3. Follow instructions in it :) This will convert your ATA from MGCP/SCCP to H.323/SIP . --Stewart