today we tried to figure out a Problem with inbound connectivity of our FreePBX.
While this, we’ve seen, that asterisk re-registers every 75 seconds. FreePBX defaultexpiry is set to 120, and expires: 120 is submitted in the REQUEST: REGISTER.
The Provider sends back expires=90 after the Contact-Field in the Status 200 OK
The provider told me, the registration every 75 seconds is not correct.
Can you explain, why asterisk re-registers every 75 seconds?
Min-Expiry is set to 60, Max-Expiry is set to 3600, registertimeout is set to 20.
Thanks in advance!