QR Code Generator for GS Wave SIP Client
This is a massively, totally, HORRIBLY, insecure way of generating QR codes for the new Grandstream 'GS Wave' Sip client, with the information in your FreePBX machine.
Unsupported. Unadvised. But it works! You'll have to change the code to actually do anything sensible with it, but feel free to tidy it up and send me a pull request.