VTech S1310 Master User Manual page 30

Installation
SIP classic trimstyle 1-line/2-line - S1310/S1320
Handset registration
S1310/S1320 handset must be registered to an S1410/S1420
To register an S1310 handset:
Place the corded handset on the S1410
is placed on the S1410 MESSAGE WAITING
S1410 When you already have 4 registered handsets, you
can replace one of them by a new handset if any one of the 4 registered handsets is disconnected from the S1410 F
S1410
To register an S1320 handset:
Place the corded handset on the S1420
is placed on the S1420 MESSAGE WAITING
S1420 When you already have 4 registered handsets, you can
replace one of them by a new handset if any one of the 4 registered handsets is disconnected from the S1420 F
S1420
Register a handset to another telephone base
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