I'm replacing an Asterisk Server with a UC540 and bringing up existing 7940 phones which have the Asterisk SIP loads. I've got the UC540 where it will serve up the SCCP load to the phones (via the OS79XX.TXT file), and the phones start upgrading their software, but give an error "Upgrade failed - unauthorized". How do I get the phones around this unauthorized message.
SCCP firmware upgrades from firmware release versions earlier than 8.3(3) to version 8.5(3) or greater, you must first upgrade firmware to version 8.5(2). Once we haved upgraded to version 8.5(2), you can upgrade your IP Phone to version 8.5(3) or later, and solve the Auth Failed problem.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.