Interesting question! A
VPN service can help in specific scenarios. VPN improves calls when: ISP throttles VoIP traffic (common with Zoom/Skype), guest is in country that blocks standard calling apps, you need consistent IP for platform requirements, routing to VPN server then destination is faster than direct route. Can hurt when: adds latency (choose nearby server to minimize), uses bandwidth (need good connection to begin with), double NAT issues (some VPN setups cause this). I produce podcast with 50+ international episodes. ExpressVPN helped with: guests in China (Zoom blocked there), my ISP throttling during prime hours (VPN hid that I was video calling), accessing region-locked recording platforms. Test call quality with/without VPN before important interviews. ExpressVPN's Lightway protocol has lowest latency I've tested - usually adds only 10-15ms. Also protects recording files when transferring over internet. For podcasting, reliability matters more than raw speed.
