Hi there

This has happened to me before when I changed the tone duration, it was too long and the PSTN receiver no longer understood the tones, but it seems unlikely nothing has changed.

The cli or logs should show you whats happening, something will be blocking the call, either the group or the channel numbers don't work or the tones aren't working. Possibly your PSTN provider has a problem but you can check this by plugging in an analogue phone to the lines and seeing if you can make a call

Cheers Duncan


On 20 Jun 2015, at 9:22, kazabe wrote:

Hi.

I have 3 lines connected to a SangomaA200.   All was working normally,
but 3 days ago we experiment this issue.    The outside callers can
call us normally; but when we try to do an external call, just receive
the message "all circuits are busy".

Only happen with outgoing call.  Incomming calls work fine.

if the conf was not modified, what can i check to search the reason of
that issue?

thanks and regards

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