Availability of 10mb/s ADSL on Telkom Lines

You can check if a particular Telkom exchange supports 10mb/s ADSL at this URL:\


ADSL is asynchronous. The "downlink" (ie from Internet to ADSL client) is faster than the "uplink" speeds. While downlink speeds are widely advertised the uplink speeds are not. Some applications are constrained by the uplink speed, not the downlink one and when setting up "Quality of Service" the knowing the uplink speed is critical.

This is a table of speeds we have seen reported by ADSL modems:

Downlink Speed

Uplink Speed

4096 kbs

511 kbs

1024 kbs

507 kbs