My recommendations
I have had Telkom phones before and they tend to be troublesome. Support is not that great either and Telkom seem to change the models very frequently.
Panasonic are reasonable. Not sure about GE.
IMO, the best range out there are the Siemens Gigasets. I have had a few of these (at home and at my business) and I am happy with them.
The lowest in the range is the A120 (R349 at Makro).
A nicer model is the A140 - I have this - not sure how much they cost single - Makro has a set of three for R999 - nice things is that you can use them as an intercom between 3 rooms in your house.
Game also sells the Siemens range and may have the A140 with 2 handsets in a pack, and not 3.