I got freepbx 17 running on debian. im using twilio elastic sip, i have grandstream 2 port fxs gateway with 2 analog phones. when i first set everything up by following twilio instructions and one whole day i tested outgoing calls and incoming calls to main ip phone extension and the other 2 analog extensions, and everything worked flawlessly. the next day after sometime one of the extension started saying all circuits are busy calling out and even other extensions.
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