Instruct: Classify the given Amazon review into its appropriate rating category
Query: Complicated and temperamental

We purchased this as an extension for my Mother-in-Laws standard OOMA phone. Her standard phone is a large button speed dial "classic" digital phone that she can manage. The OOMA extension is too complicated for her to use. Not a drawback in general, just too complicated for the technologically challenged (note: she told us once that she "...gave up when the electric typewriter came out). However, where this phone does fail is in connectivity. When my mother-in-law does successfully answer the phone, it ends up losing connection after a few minutes. It doesn't indicate that the connection is lost so my Mother-in-Law keeps talking or thinking the other person just can't hear her.