Friday, August 26, 2016

To enter programming mode

To enter programming mode : 1. Go to any working display telephone.In a newly installed system, use extension (port 1). 2. Do not lift the handset. 3. Press  Speaker. 4. # *  # *. 5. Dial the system password +  Hold. Refer to the following table for the default system passwords. To change the passwords,

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