C-250 | Entry Phone Controller w Call Forwarding | Viking Electronics

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Single Entry Phone Controller with Call Forwarding and Door Strike Control

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Product Details

The C-250 allows single line telephones or a telephone system to share a phone line with a single Viking door entry phone. Tenants may answer an entry phone call, converse with the visitor and let them in with a touch-tone command.

The C-250 also has a built-in five number dialer to make an outside call if there is no answer on the inside phone. If the outside call is busy or ring no answer, the C-250 can call up to four more numbers.

The C-250 provides a “Call Waiting” tone when the phone line is in use. Tenants may also call out to the entry phone for monitoring purposes.


  • Add an entry phone to your standard home or office phones to provide door communication
  • Provide commercial or residential security via two-way handsfree communication at the door or gate
  • Connects in series with a single phone line or with a phone system’s line / trunk input


  • Allows single line telephones or a telephone system to share a phone line with a Viking entry phone
  • Double burst ring pattern allows you to distinguish entry phone calls from CO calls
  • Built-in five number dialer
  • Detects busy or ring no answer and goes onto the next number
  • Built-in door strike relay with 1 or 2 digit commands
  • Remote programming
  • Auto answer
  • Detects touch tones as fast as 50 milliseconds
  • Trigger input for postal lock, Request to Exit (REX) or immediate call forwarding
  • Produces “Call Waiting” tones if the entry phone is activated when the house phones are already on a call
  • Compatible with all Viking E-Series and K-Series analog entry phones, or use with any standard analog phone


  • Power: 120VAC / 13.8VAC 1.25A UL listed adapter provided
  • Dimensions: 5.25″ x 4.1″ x 1.75″ (133mm x 104mm x 44mm)
  • Shipping Weight: 2 lbs (0.9 kg)
  • Operating Temperature: 32°F to 90°F (0°C to 32°C)
  • Humidity: 5% to 95% non-condensing
  • SPDT Relay Contact Rating: 5A @ 30VDC / 5A @ 250VAC, 250VAC maximum
  • Ring Output: 5 REN, capable of ringing ten 0.5 REN phones
  • Talk Battery: 32VDC
  • Connections: (12) cage clamp screw terminals


  • FCC Part 68
  • FCC Part 15