Also at the switch I actually have 3 boxes for the 1.telephone recepticle, 2 two switches for ceiling lights and 3 the double switch i mentioned above
I guess it is a bit more complicated than I originally understood. Phone in the same box as power? That is interesting. Because of the additional complications, cost of devices may be higher than I originally proposed.
I use "insteon" switches throughout my house. (There are also other types, including X-10, UPB, Zwave, others.) Insteon does not make a double switch. They do, however, make a keypad that can indirectly (via communication with another insteon device) control up to devices. The keypad, itself, can directly (hooking to a load) control only a single device.
Since your outlet would be only indirectly controlled, a keypad could work here. You would simply have a few extra buttons that are unused. The outlets are designed in such a way that only one half is controlled. The other is always on. This is how you want it, as I understand.
In order to make this work, you will have to be willing to open your switch box and identify the hots and neutrals. You will need to identify the wire that goes to your outlet and to your undercabinet lights. You would be removing your existing double switch and replacing it with the keypad. Using wire nuts, you will need to be able to hook hot to the outlet wire, and the keypad. You will be combining neutrals.
Programming, in your case, would be performed at the devices. You simply have to "link" (establish communication between) the appropriate keypad button and the outlet. This is simple enough for even a third-grader.
If this sounds like something with which you are comfortable, then here are the devices. Six button keypad in ivory (8-buttons are available):
I have not mentioned switchplates. These are all decora type devices requiring that type of switchplate opening. I am unsure if this matches your existing switchplate. While combination switchplates are available, one with a combo light switch and phone outlet I am less certain about. You need to consider this.
One additional thought about this approach....these devices can be configured in several different ways and can respond to other insteon devices such as timers. You could easily add an insteon-enabled timer and use this to automatically trigger your insteon-controlled lights (in your case, undercabinet and outlet) based on time and/or sunset/sunrise. You could also use the extra keypad buttons to control other fixtures in the room, if you wish to add to your collection of insteon devices.