The Panasonic VB-44440 is a CPU unit for a system with up to 28 extensions and up to 68 ports. The circuit card uses a 16-bit CPU and does not support the DEC16 or DEC24.

Key Features:

• Mfr. Part #: VB-44440
• Time switch (9 Highway x 9 Highway)
• 4-circuit MFR (DTMF receiver circuit)
• Three 8 party conference circuits
• Service tone
• DTMF transmitter
• Input terminal for external hold tone and BGM source(RCA jack)
• EPA output (RCA jack)
• Connecting terminal for synchronization package (VB-44460)
• Interface connector for a compact flash card. The system control program is downloaded to the internal memory of the system through the compact flash card.
• Memory is retained with a backup battery