KX-TG2873BXS/KX-TGA280BXS
9.2.
Service Mode Function (for Base Unit with Cordless Handset)
Note for service:
When the display language is in Thai, press [F1][#][0][4][9][>] and [F1], then the display language will be changed into English.
9.2.1.
How to Clear User Setting
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