Hi Satanboy,
Unfortunately not. You will need one of ATEC's Tilgin gateways in order to connect to the ATEC network. All ATEC roll-outs standardize on the Tilgin CPE, as the Tilgin VCM backend is crucial to the company maintaining its level of service.
The good news is that on CCC you have 2 options:
There is the "Advanced" CPE, which is a Tilgin HG2314, which is the standard device ATEC uses on all their FTTH estates. It has the normal specs, 3x3 MIMO Type N Wifi, 4x Gbps LAN ports, 2x RJ11 phone ports, and DECT compatibility (the unit will act as a DECT base station for a cordless DECT IP phone). ATEC sells these at cost to CCC customers for R1600.00, and installation is then free. Still not cheap, i realize.
Alternatively ATEC supplies the "Basic" Tilgin HG321 device. For a cost effective option, you can just select one of these. Then re-configure your ADSL router as a Wifi AP and patch it into the Tilgin. These devices are essentially supplied to the customer free of charge, but you will need to pay a R350.00 installation fee for the callout and on-premises setup.