Krisp handles not only noise cancellation but has your back when it comes to the echo. There are two types of echos you can face in your everyday life. Krisp handles them both.
Acoustic echo happens when the voices of other call participants are coming out from your speaker, then are being captured by your microphone and return to them making the conversation really hard.
Room echo or reverberation occurs when sound waves bounce off a hard surface so that you hear the same sound again. Large rooms can create echoes, especially if the room has hard, bare surfaces, high ceilings, or does not have much furniture.