I have seen this message " stopped sounds " while I am watching asterisk debug: -- Called 99999/0532828384 -- Call accepted by 192.168.10.220 (format ulaw) -- Format for call is ulaw >>>>-- IAX2/99999-69 stopped sounds -- IAX2/99999-69 answered SIP/xxx.xxx.xxx.xxx-b7d009a0 What does it mean??