Please try the paid version if you can not see "Remote Wave" when you open attachment from your email clients. Play GSM/WAV/AU voicemail attachment. Support following encodings: ULaw Gsm6. 1. IMA/MS/Dialogic/OKI ADPCM. DSP TrueSpeech. Attention: Must work with other apps, In email, browser, etc, Press file-"open with"-"Remote Wave".