Telkom South Africa has launched the country's fourth mobile operator, under the name 8ta. 8ta has constructed 800 base stations across the country, and plans to construct a further 3,200 over time to improve coverage and connectivity. Whilst 8ta is still growing its network, the operator will have full national coverage, thanks to a roaming agreement with MTN. The HSPA network offers downlink speeds up to 7.2Mbps and can be upgraded to 21Mbps. Telkom said the hardware can also be upgraded to LTE and offers a fully IP architecture from base station to core. 8ta will offer calls to fixed lines at ZAR 0.65 per minute, independent of the time of the call, as well as a flat rate of ZAR 2.50 per minute for calls to over 100 international destinations. The service will offer prepaid customers free talk time to any network every time they receive calls from a mobile phone, equal to 1 free second of airtime for every 3 seconds of call received.