1. Go to the TMS URL: https://tms.euphoria.co.za/ 
  2. Choose the correct account
  3. Select the SIP Tab.
  4. Click on the line sub-menu.
  5. Click the 'Codec Settings' drop-down menu.
  6. Ensure that G729AB is the only codec in the 'Enabled Codecs' block.
  7. Click Apply for the changes to take effect.