answer

beep

busy

call

calling

communication

dial

dialing

engaged

united kingdom

line

loop

number

office

phone

redial

ring

ringing

signal

telephone

tone

tones

waiting

home

fx

looped

digital

sound effect

desk

bright

casual

determined

dramatic

dreamy

easy

proud

positive

poignant

playful

intense

hypnotic

repetitive

relaxed

strange

tension

urban

video game

telephony

interior

seamless looping