[server36]

If phone lines are considered online, then yes. I learned mostly from listening to conversations. The easiest is just to listen.

If you cannot be around native speakers, try phone calls. Making a phone call stops you from feeling ashamed, but helps you to practice (standard) sentences and listening. It helps that they usually have a specific context. Look up standard sentences for a topic (like hotels or restaurants) and just call. If the call gets awkward you can always hang up.