VTech CTM-S242SD Manual - Manual (Page 35)

Installation
31
Handset registration
An S1310/S1320 handset must be registered to an S1410/S1420 telephone base before use.
To register an S1310 handset:
Place the corded handset on the
S1410 telephone base cradle. Handset registration happens automatically the first time a handset
is placed on the S1410. When the registration process completes, the MESSAGE WAITING LED flashes once and you hear
3 rising beeps as confirmation. Each S1410 accommodates up to 4 handsets. 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. For example, it is
out of range, or its battery is removed or depleted. The previous registered handset is then deregistered from the S1410.
To register an S1320 handset:
Place the corded handset on the
S1420 telephone base cradle. Handset registration happens automatically the first time a handset
is placed on the S1420. When the registration process completes, the MESSAGE WAITING LED flashes once and you hear 3
rising beeps as confirmation. Each S1420 accommodates up to 4 handsets. 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. For example, it is out
of range, or its battery is removed or depleted. The previous registered handset is then deregistered from the S1420.
Register a handset to another telephone base
Any classic trimstyle 1-line handset can register to any classic cordless 1-line telephone base. Any classic trimstyle 2-line handset
can register to any classic cordless 2-line telephone base.
When a registered handset is idle, place it on another telephone base. This handset automatically registers to the new
telephone base.
Installation
SIP classic trimstyle 1-line/2-line - S1310/S1320