RJ11 Male to BT(431A) Female Converter
PRODUCT CODE: RJ11MBTF
Commonly used in VoIP applications where the devices POTS (Plain Old Telephone System) ports are RJ11 standard. These ports are designed for plugging in any standard telephone-this converter allows a telephone with a BT plug to use those ports. Please note some applications require the converter to have a ring capacitor to enable the phone to ring-please see HERE.