Convert to GSM

GSM (.gsm) is a voice-focused audio format often used in older phone and voicemail systems. Choose it when you need very small files for speech or when you must match older phone equipment or call-recording setups.

• •Keeps file sizes tiny, which is great for storing lots of voice notes or sending files quickly.
• •Best for speech (voicemail, call recordings); not ideal for music or high-quality audio.
• •Limited compatibility—many phones, players, and apps won’t open .gsm without a converter.
• •Not meant for the web—most browsers can’t play .gsm directly.
• •Useful when working with legacy phone systems or importing/exporting voicemail files.