Customer wants the same company that is supplying their MOH equipment to record the greetings for their voicemail.

I have recorded, exported and reimported greetings before, but if someone is sending me a raw audio file, is there a specific format that it needs to be for the UM8000 to accept it or is any .wav file going to work?

Found it

WAV files must be in the (AD) PCM audio format
16 bit audio sample size
96 kbps bit rate
1 (mono) channel
8 kHz audio sample rate
No other formats are supported.