Review on OPIS PushMeFon Cable Fixed Line Push Button Office Electronics by Mark Bennett

I was so excited when I discovered this phone at Revain. My main reason for purchasing was the LOUD METAL RINGER reviews. I work in a restaurant where the noise from the appliances prevents us from hearing the phone ring. I actually bought this from my business bag so I can hear when customers call to place orders. We can barely hear this call even before the device is turned on. If someone could tell me how to make the phone louder I would be perfectly satisfied. There were no instructions or manuals to refer to. I'll be forced to stop using my phone if I can't get it to ring louder. Someone please help.