I work for a telecoms company - we only do Avaya IP Office so can't specifically help with the splicecom, but distance should not be an issue. We are based in Waterloo but have customers all over the world as 95% of support is remote anyway.
There is a telecoms company near you who could probably help called
Pinnacle . I only know of them because the company I work for is also called Pinnacle and we often get calls from their customers asking us for help