Sony PCGA-BM1 Mode D'emploi page 22

Bonding multiple notebooks
After the procedure described in the previous paragraph is completed, it is
possible to bond further notebooks. Repeat the steps starting on page 16 for
each notebook.
The maximum number of notebooks that can be bonded to the PCGA-BM1
is 16. When attempting to bond a notebook after the maximum has been
reached, an error message appears. In this case, use the supplied modem
station utility to delete bonding information for notebook that is no longer
required. For details on this procedure, refer to "Deleting unnecessary
bonding information" on page 27.
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