Call Recording Format - WAV but want GSM

Hello, my call recordings are currently WAV format but I would like to us GSM. Is there a way to change this setting in freepbx?

you can convert them to gsm but why do you want them as gsm?

It is my understanding that GSM files will be smaller than WAV files for calls of equal length. This would allow me to email calls easier and save disk space.

How do you convert?

There is a ‘file convert’ option in Asterisk at the CLI.

Hoever, I’m not sure I’m really following you properly.

However, I’m not sure I’m following you wrt to ‘emailing calls’ in the context of call recording. Also, keep in mind that you will have problems playing back most formats other than proper wav files on most players, if you goal is sending some sort of sound recording by email.