SC3122 User Guide
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1. INSTALLING OR REPLACING THE BATTERY
Install 3 Alkaline AA batteries into the battery compartment and re-fit the cover before use.
IMPORTANT—before removing the battery compartment cover, ensure the base unit
is disconnected from the telephone line.
Connection and conditions for use
You can connect your SC3122, to public networks in the United Kingdom or to an
approved PBX using DTMF signaling. Each item of telephone equipment (phones, fax
machines, etc.) has a ringer equivalence numbers (REN). The RENs of all
equipment connected to an exchange line must not add up to more than 4
otherwise, one or more phones may not ring and/or answer calls correctly.
SC3122 has a REN of 1, and most other telephones have a REN of 1 unless marked
otherwise.
2. SWITCH OPERATION
IDD LOCK switch
Use the keys provided in the package. The telephone allows all outgoing number if the key is
on red point. It cannot dial outgoing number starting with digit 0 when the key is on green
point.
RING HI/LO switch
Select your preferred ringing tone either HI or Lo. The selection is at the back of the
telephone.
VOLUME HI/LO switch
Select your preferred handsfree speakerphone volume either HI or Lo. The selection is at the
back of the telephone.