[Asterisk-Users] Help w/ SIP response 481

[Brent Franks]

> This is how I have the SIP extension setup:
> [2002]
> type=friend
> username=2002
> secret=mypassword
> host=dynamic
> context=from-sip
> mailbox=2002
> nat=yes
> qualify=yes
> dtmfmode=info
> reinvite=no
> canreinvite=no
> disallow=all
> allow=ulaw
> allow=alaw
> allow=gsm
> callwaiting=1

Not sure how to resolve your issue, but reinvite=no is not supported.
canreinvite=no is the proper config option.  Delete the reinvite.

- B