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Appendix
Add and register handsets/headsets
If registration fails, the system will automatically try to register again. If
registration fails after the third try,
Registration failed appears on the handset
screen. The handset shows
To register HS... and ...see manual. This may take
up to five minutes to occur. Please start again from Step 1.
Note: You cannot register a handset if any other system handset is in use.