QuBe gives you the Asterisk console, not a shell — so run these in the CLI and paste the output here (one blob is fine):
dialplan show pjsip show endpoints voicemail show users features show
dialplan show
pjsip show endpoints
voicemail show users
features show
If you have shell access: drop sip.conf / pjsip.conf, extensions.conf, voicemail.conf, features.conf.
sip.conf / pjsip.conf
extensions.conf
voicemail.conf
features.conf