FAQ

How can I test the speaker and microphone of my IP phone?
Connect to your IP phone using the Viking IP Programming software.  Go to the “alarm/firmware” tab and click on the “test mic/speaker” button.  You should s...
Wed, 19 Feb, 2020 at 10:09 AM
I made changes to my IP phone on the “IP Settings” tab, applied those changes but now I get a time-out error when I try to connect to the phone using Viking IP Programming or the IP phone no longer shows up on the connect screen of Viking I
You may have programmed the IP phone to a static IP address that is already being used by another device on the network (IP address conflict) or the IP phon...
Wed, 19 Feb, 2020 at 10:11 AM
How can I record a message into my E-1600-IP series phone that will play when the call is answered?
Call into the IP phone by dialing its DID number or extension number from another phone.  When it answers, dial “845464” (or the current security code if it...
Wed, 19 Feb, 2020 at 10:11 AM
Why doesn’t my IP phone play a recorded message when the call is answered?
Only the Viking “1600” series emergency phones have the ability to play a recorded message when the call is answered. For example, a model E-1600-32-IP has ...
Wed, 19 Feb, 2020 at 10:12 AM
Do Viking IP Products support TLS?
As of the time of writing, only our X-series products are capable of supporting TLS (and consequently SIP over TCP).
Mon, 16 Mar, 2026 at 10:59 AM
Do Viking IP Products work with Office at Hand?
Office at Hand is a business phone service provided by AT&T, effectively reselling SIP services from RingCentral.  AT&T has Disabled the ability...
Mon, 16 Mar, 2026 at 11:06 AM
SIP Registration Failures Resolution
1. Check IP Settings for correctness. 2. Ensure DNS is configured if hostnames are specified for SIP Server entries. 3. Ensure SIP Server, Proxy, User...
Mon, 16 Mar, 2026 at 11:27 AM
FreePBX and reserved keys
The FreePBX system reserves the star "*" key for its own use.  When using Viking IP intercoms, it is necessary to select some other character/...
Mon, 16 Mar, 2026 at 11:33 AM
CTG-2/CTG-2A : File Read Error when Uploading WAV file
Programming tool displays "File Read Error" popup after selecting a local WAV file to upload to the clock.  Audio files must conform to the fo...
Mon, 16 Mar, 2026 at 1:20 PM
IP Products beep three times on outgoing call
Unlike our analog products that sound the DTMF tones in the speaker for all digits dialed, our IP products emit three beeps regardless of how many digits ar...
Wed, 18 Mar, 2026 at 11:59 AM