Use o comando Congestionamento
pro-sip*CLI> core show application Congestion
-= Info about application 'Congestion' =-
[Synopsis]
Indicate the Congestion condition.
[Description]
This application will indicate the congestion condition to the calling
channel.
[Syntax]
Congestion([timeout])
[Arguments]
timeout
If specified, the calling channel will be hung up after the specified
number of seconds. Otherwise, this application will wait until the calling
channel hangs up.
[See Also]
Busy(), Progress(), Playtones(), Hangup()