The temperature-concentration dependence of electrical conductivity was studied in glasses of the systems Ba(PO₃)₂-Ba(Hal)₂, where Hal = Cl, Br, I. The Hittorf method was applied to find the transport numbers for chloride, bromide, and iodide ions and their concentration dependence was determined. The effect of halide ions on the structure of glasses is demonstrated by IR spectroscopic studies.