So I called this number today to see where it dialed to. First a messaging system put me in a que, then someone answered. Funny because the guy starting speakin in polish. I kept insisting to speak in English, but my curiosity bested me and I started speaking to him in Polish. Turns out he's peddling long distance phone service. I think the reason you're not hearing a response when you get a call from this number is most likely because this person doesn't speak English and is trying to figure out if you are polish by the sound of your voice. In the end this is a telemarketing call. If you have not done so already you can report this number to FTC's complaint site and add your number to the national do not call list. Just google national do not call and to find the site.
Just wanted to help those people out that are frustrated with getting weekly calls from this number.