Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor outgoing sound quality

Transmitted voice quality is muffled and unclear, sibilants will be almost entirely missing (s's, z's, sh's, zh's, etc.) The speakerphone on the handset is even worse. Received sound is okay, but if you need to be easily understandable to your callers, don't buy this unitEighteen(!) programming steps are required each time you want to turn the handset ringer on or off.This telephone is obviously a toy designed for casual home use, certainly not for serious business.