Caster.fm currently offers a permanent free plan, not merely a 7-day trial. It provides: Icecast 2.5 400 simultaneous listeners Up to 96 kbps MP3 and Opus HTTPS streaming A built-in radio website/player Compatible with BUTT No credit card required. For a station like WAN FM that is currently testing its online stream, this is probably the easiest alternative. BUTT → Caster.fm → listeners' phones would be very straightforward.