Not too clued up on trademark laws etc, but, I think this would fall into something like slogans/branding or something(don't know terminology) and the would be protected if they registered it. So, although a general term, they use it as a product/service name, not in a 'general description context'. Its part of their 'branding' (think 'steers flame grilled'), so I think yes, they can prevent telkom from using it. Lightspeed is a 'product' they offer, so it should(?) be protected, but that only prevents other telecoms from selling services called 'light speed', they can still use the light speed wording in descriptions, tech specs etc. Personally, I think this is deliberate move of telkom, light speed prices are excellent compared to telkom, they trying to grab suckers that heard their friends talk about 'light speed', and when go to telkom site, they see the name there and sign up thinking its the same great offer.Yeah LightSpeed is a generic term. It is like saying Telkom used the word Broadband first and so no one else can use it in SA because Telkom used it first.
Light Speed being the speed at which data travels in a fibre can't be trademarked can it?