I'm trying to set up an ATA 186 so that we can integrate it with our Polycom VCS. The ATA is set up as an SCCP device, and works fine as an analog line. What I need to do though, is set it up to use the BellCore mid-call service, as this seems to be the most "standard" way of initiating a conf call. Thus far I'm having no luck with the params to use to do this. Has anyone done this, and could you share any insite?