Step 1: Go to the TMS URL: https://tms.euphoria.co.za/ 

Step 2: Choose the correct account

Step 3: Select the SIP Tab.

Step 4: Click on the line sub-menu.

Step 5: Click the 'Codec Settings' drop-down menu.

Step 6: Ensure that G729AB is the only codec in the 'Enabled Codecs' block.

Step 7: Click Apply for the changes to take effect.