Hi, im sorry for posting this but I just cannot find how to change the codec preferences on a 3CX extension. I only found I can change priorities and codecs on VoiP providers. The problem is I have a device that needs to use Speex as its codec and because of this its having issues with 3cx. You cannot change the codec on the software side, and I thought I could change the codec on the extension for 3cx. I cannot make or receive calls internal to the PBX via this extensions because of this.