When i make call from one verto endpoint (1000) to another verto endpoint (1001) allways getting Originate Failed.  Cause: USER_NOT_REGISTERED. But  I can able to make call from (1000,1001) to test ivr(5000)  its work fine from both extension ,The only problem I can't able to make call from one verto  endpoint(1000) to another verto endpoint (1001).

I attached my fs log