In article ,
Larry Dighera wrote:

According to
AOPA, the AFSS should answer your phone call within 20 seconds and
radio calls within 5 seconds. You must receive service from your
radio call within 15 seconds. PIREPs must be processed within 30
seconds and within 15 seconds if they are urgent.

Well, I should probably report Terra Haute FSS for not answering my
radio call in a timely manner. I tried one frequency for a minute, then
switched to another and had to unsquelch the circuit to hear them.