The story so far.
I changed to naked VDSL and Italk. Naked VDSL change went smooth. Italk has been a disaster. I have had no phone since it was switched off for the Italk changeover. I could not get the Cisco ATA SPA122 Slingshot sent to work. Many hours on the phone putting settings in and changing/checking settings with no success. The Slingshot rep finally said, ring this 0800 number for help wwith the SPA122. Did that and got a nice Linksys rep who advised I needed to be talking to a Cisco rep. He gave me the phone number, I then talked to a nice Cisco rep who remoted into my system to have a look at the SPA122. Other than update the firmware and check settings ok he couldnt help me any further as he didnt know what Slingshots settings should be.
More hours spent on phone to Slingshot with no success. I asked if we could try the softphone software. X-Lite downloaded and installed, even this wouldnt work. More hours spent trying to get this work as well. I enlisted the help of an IT friend who also spent hours trying to help me with no success. He rung Slingshot on my behalf, managed to get put thru to a supervisor who had him setting up port fowarding and DMZ on my system. Still no success. I decided to setup the X-lite softphone on my friends Telecom broadband system. It worked immediately. I could even set up an android version of softphone and it worked.
Relayed this information to Slingshot, they had me turm my modem off so it would get a different IP address. This didnt fix anything. From what I can gather Slingshot seem to think the problem is there end now. Any body have any ideas on what I could try or what questions I could ask Slingshot.