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Bell BT1 | Telephone Dialing Interface Unit
The BT1 Telephone interface offers the convenience of operating a door entry system from an existing BT style telephone without interfering with its normal usage.
Most domestic tone-dial telephones are compatible with the BT1 including cordless DECT telephones which are of great benefit to those people with limited mobility.
- Dialing interface unit
- Bell Audio 4 + n cabling
|Cabling||Bell Audio 4 + n|