I need to know the prices for these PBX products. Each has to have 3 external lines and 48 lines for internal communication between rooms. Kindly also send details of features for each product: 1. Panasonic KX TDA100 2. Panasonic TEM824 Kind regards -- * To follow the path: look to the master, follow the master, walk with the master, see through the master, become the master.* *- Zen Poem*