SIP/2.0 483 Interval Too Brief

Got SIP response 423 "Interval Too Brief" back from XXX.XXX.XXX.XXX

Solution:

Go to /etc/asterisk/sip.conf and increase to higher value:

defaultexpiry = 600

Default is 120. Try 1200 and more if 600 does not work.

The line "defaultexpiry = 600" must be above "#exec /usr/local/mor/mor_ast_register SIP", otherwise it will not be applied on outbound registrations.

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Check also:

• SIP Error Codes