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8x8 Support Knowledge Base

Panasonic KX-TGP600: Error 003 SIP Registration Failure

Symptom

Your Panasonic KX-TGP600 DECT phone is receiving the following error, Error 003: Not registered.

Applies To

Panasonic KX-TGP600 DECT phones

Resolution

Cause

Error 003 - SIP Registration Failure may result from a bad configuration, failed handset pairing, a device requiring pairing, or an non-activated or offline base unit.