In the office we run a TVA50, and kxnt343 desk phones. I currently have one in the home office running over VPN and it works great. I recently had them (phone provider) add a kx-tgp550 for the residential line for the house over the same line. Overall it works great, the only thing I miss on it is call waiting. If the home number is being used, any inbound call just gets an immediate VM prompt.
The phone provider is telling me it is not possible with this particular phone, though the tech sheet says it does feature call waiting. I am totally not familiar with phones and pbxs, but this seems strange in this day and age.
Anyone know of how to get this to do call waiting also?