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New Member

Viking E-30 door phone with FXS port

I recently tried to install a Viking e-30 door phone on a Cisco FXS port. Everything worked fine except the door phone drops the call after about 3-5 secs. I spoke with Viking's tech support and they advised me that the issue was caused by low voltage. The solution they provided me with is to purchase a 12v adapter from radio shack and wire it in series with the door phone. I'm not so sure about this solution and am interested to hear if anyone else has tried this before?

3 REPLIES
Hall of Fame Super Gold

Re: Viking E-30 door phone with FXS port

How far is the doorphone and over which wire gauge is made the connection ?

Hall of Fame Super Gold

Re: Viking E-30 door phone with FXS port

Alos, which exact type of port it is (do "show diag" to know).

On some types you can configure the idle voltage:

http://cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a008011c7f3.shtml

Hope it helps, please rate post if it does!

New Member

Re: Viking E-30 door phone with FXS port

Its about 800 ft from the network cabinet. The port is a VIC-4FXS/DID.

I wasnt aware that the voltage could be adjusted. I'll try that tomorrow and see how it works.

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