FAQ

The LED on my intercom/call box/entry phone is blinking but I don’t hear any sound through the speaker.
1. Check the speaker volume control setting (on the back).  2. Check the resistance of the speaker with a voltmeter. (set the meter to resistance check,...
Fri, 1 May, 2026 at 8:10 AM
The Relay LED’s on the C-2000B are constantly on. What does this mean?
This indicates that a user has inadvertently dialed a Relay Latch command like “*1”, while talking to an entry phone, instead of the normal “**” Timed Rela...
Wed, 6 May, 2026 at 2:07 PM
When I press the call button on my intercom, I hear two beeps and then it calls out to Viking. Why?
This normally means that DIP switch #3 on the back of the E-30 is set to the OFF position, which places it in programming  mode.   (in this mode, the phon...
Fri, 1 May, 2026 at 8:43 AM
I just installed the BLK-4 Strobe light and it has lights that are on steady when it is idle. Is there a way to turn off the steady lights, so it will only flash the lights when there is activity like ring or loop current detected?
You can turn off the steady lights by slightly changing the wiring to the strobe.  In the product manual, it tells you to match the three wires from the str...
Mon, 11 Dec, 2017 at 10:26 AM
I have an E-40 entry phone, a K-1900-5 to dial the number for the entry phone and a SRC-1 for touch tone door control. When the remote party tries to dial the touch tone command to open the door, there is a constant beeping sound. Why?
The K-1900-5 is producing the continuous touch tones as part of a “restriction” feature.  The “restriction” feature of the K-1900-5 must be disabled in an a...
Mon, 11 Dec, 2017 at 10:27 AM
Are the E-1600A series phones or the E-30 series entry phones polarity sensitive to tip/ring for the phone line connection?
No, none of our analog emergency phones or entry phones are sensitive to polarity of the analog line connected.  They have a built in “polarity guard’ that ...
Mon, 11 Dec, 2017 at 10:28 AM
AES-2000 programming problems
The phone line servicing our AES-2000 was recently changed from a line from the phone company (POTS/copper) to some other provider (cellular adaptor/broadba...
Wed, 6 May, 2026 at 1:54 PM
Is there an option to use a static IP address for my IP phone?
Viking IP phones have DHCP enabled by default, but will support static settings.   Connect to the unit with either: Viking IP Programming software ...
Wed, 6 May, 2026 at 2:02 PM
Are the Viking IP phones full duplex?
No, the Viking IP phones are based on a simplex design, with automatic voice activated switching.   When the party that answers the call is talking, the...
Wed, 6 May, 2026 at 1:36 PM
IP phone registers with a cloud-based SIP provider, but outgoing calls will not ring through properly.
When using cloud-based SIP providers, the “in-band audio call progress” feature MUST be enabled. Viking IP Programming -- “Phone settings” tab Viking De...
Fri, 1 May, 2026 at 7:58 AM