I bought this phone for coupling to another wireless Siemen we have for 5 years. Recognition of this modern conbine on an old base was made very simply. In addition, it automatically records the stored names and numbers on the old phone. No need to waste time manually copy them. It takes almost 15 days without charging. The design is modern, its clear display, its natural grip and listening comfort (even hands-free) is good. The manual is well done and complete. I am happy with my purchase with delivery went well.