So, it has been months since I posted something technical on my website. For the most part it has been music stuff as well as general updates on the overall infrastructure of the site. However, for the past month or so I’ve been working on getting a Cisco SIP phone working with FreePBX. However, the problem was that I was not able to receive inbound calls.
This was the not so descriptive error:
-- Called 2000
; my sip extension
-- Got SIP response 400 "Bad Request" back from 192.168.1.102
; sip reply
-- SIP/2000-7b88 is circuit-busy
; this cause the call to go straight to VMLooking at the logs and googling for weeks on the problem, it was possible that the problem was the following:
-- Executing NoOp("Zap/1-1", "Using CallerID
""LastName FirstName "" <11234567890>") in new stackPlease note the double quotes around my name.