Caller ID for VoIP

Collects all Inbound and Outbound call information on Voice over Internet Protocol (VoIP) phone traffic. The output data format matches our Whozz Calling? analog devices, providing software compatibility across product lines.

This device is a passive network packet sniffer or "network tap". All VoIP traffic of interest flows through the unit, while circuitry connected in parallel with the Ethernet transmit and receive pairs inspect data packets. This failsafe approach provides uninterrupted voice transmission, regardless of whether the Vertex is operational.

The Vertex is designed to work only with standard, non-encrypted, SIP (Session Initiation Protocol) signaling from the VoIP provider. Although most VoIP providers use unencrypted SIP, please verify with your provider before ordering.

Pricing is licensed based. Caller ID will be displayed for the licensed number of simultaneous calls (voice channels) in progress. For example, a Vertex with a 2 channel license unit will report Caller ID on only the first 2 calls.

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Typical Uses
  • Deluxe Caller ID Modules
    Caller ID screens can show when calls are answered, in progress, and completed for both inbound and outbound calls.
  • Pop-up Customer Records
    Even before answering a call, the customer's record can be shown. This allows employees a moment to review the client's information before responding.
  • Personalize Your Phone Calls
    Having your customer's information in front of you allows you to tailor your conversation to their needs.
  • Save Time Taking Orders
    Save precious seconds during peak hours by customers automatically being pulled up.
  • Call Back Unanswered Customers
    Hardware tracks whether calls have been answered or not.
  • Bill Clients for Phone Hours
    Charge based on the total duration of all phone calls to and from your customers. Software available with reporting capabilities.
  • Adjust Telephony Staffing
    Unit reports if calls are answered, and number of rings before answer, and call duration.
  • Build Your Prospect List
    Software is available to "quick fill" new records with Caller ID names and numbers.
Software Available

If you do not have an application that integrates products, our free EL Popup software can be used for simple popup and logging applications. All call records are easily accessible for display, sorting, searching and exporting.

More robust programs for office applications can be purchased from our general office software partners. These programs contain features to add customer records, call notes for each conversation, pre-programmed and customizable call reports. has partnered with many industry-specific application providers in the Restaurant/Hospitality, Taxi/Dispatch, Automotive, and Service industry. We have links to most companies that have integrated products on our Software Partners page.

  • Inbound Caller ID
    Incoming call data includes phone line number, time, date, Caller ID number, Caller ID name (when available) call duration, and number of rings before answer.
  • Outbound Caller ID
    Outgoing call data includes phone line number, date and time, number dialed, and call duration.
  • Real-Time Phone lIne Status
    Units can report Ring, Off-hook, and On-hook events so call status can be presented.
  • Ethernet Status Lights
    Link LEDs show connections. Data LED’s shows packet activity
  • Easy Connections
    Installation guide with multiple installation diagrams so one should closely match your network topography. Free Technical support is available during the warranty period.
  • All Inclusive Package
    Product includes a power supply, (2) 6' Ethernet cables, a 6' Serial cable, and mounting bracket.

The Vertex has 2 Ethernet VoIP Bridge Ports in order to monitor VoIP traffic. The Vertex should be connected such that all VoIP traffic flows through these Bridge ports. The unit analyzes the VoIP packets and sends call records out via an Ethernet output port or Serial port.

The overwhelming majority of VoIP installations are referred to as Cloud, Cloud Hosted, or a Hosted PBX. These providers simply send customer phones which are then connected to the local area network. All configuration, setup, switching, voice mail, automated attendant, call cueing, and call control is performed by the service provider's host computer in the cloud. Vertex units are designed for Hosted VoIP, but will work with the majority of Managed applications using SIP trunks.

Installation instructions and diagrams are included for various architectures and free technical support is available during the warranty period.

Application Integration
  • Complete Source Code
    Royalty-free complete Popup source code in a variety of programming languages on different platforms. See our Developers Section for more details.
  • Software Test Tool
    The Ethernet Emulator delivers the exact same output as Ethernet connected Vertex units. It eliminates the need for using hardware during development of your interface software.
  • Easy Integration
    Unit sends fixed field, space delimited, ASCII text for simple string reads and field extractions. View Data Format.
  • Programming Manual
    Comprehensive manual designed with the developer in mind.
  • Technical Assistance
    Free programming assistance and technical support during the entire product warranty period.
Physical Dimensions 6.0" W x 7.1" D x 1.4" H
Shipping Dimensions 10" x 12" x 6"
Actual Weight 3 lbs. (1.4kg)
Shipping Weight 7 lbs. (3.2kg)
External Power Supply Output 9VDC, 1A - Center Negative
Domestic Supply Input 110-120V, 60Hz
International Supply 110V-240V, 50-60Hz, Interchangeable Prongs
Current Draw Less than 500mA
VoIP Monitoring Ports RJ45, 100BaseT Ethernet Pass-through, no termination endpoint
Computer Connection Input/Output - RJ45, 100Base-T Ethernet endpoint, DHCP or Static IP
Output only: DB9 RS232, 1200, 9600, or 38400 Baud, N, 8, 1
Approvals UL, SA and FCC
Proper Vertex Sizing

Vertex hardware uses voice channel licensing. The license enables a set number of voice channels to deliver Caller ID or outgoing call data concurrently. When a call is in progress, either incoming or outgoing, a voice channel within the unit is occupied.

If the number of voice channels in progress exceeds the license, the Vertex will not report Caller ID (or outgoing call data) for that call. Instead, on an incoming call, the Caller ID number will show the last 2 digits of the phone number as "xx" and the Caller ID name will show, "Channels Exceeded".

Take for instance, a Vertex licensed for 2 channels. One employee is calling a vendor. One employee is taking an order from a customer. Two conversations are in progress, so 2 voice channels within the Vertex are occupied. If a subsequent customer calls the location, the Vertex will report "Channels Exceeded".

Voice Channels Retail Price
2 $325
4 $575
6 $795
8 $995
10 $1,175
15 $1,550
20 $1,895
Volume discounts available.

Retail customers see our complete End Users Price List.
Dealers and distributors see our Dealer Price List.

Choosing License Size

The number of voice channels should match the maximum number of concurrent calls normally experienced. Remember, this includes outgoing calls as well. Depending on the environment, this may or may not have anything to do with the number of VoIP phones actually being monitored. If a user has recently switched from analog phone lines to VoIP, chances are the number of voice channels needed would closely match the number of analog lines previously used.

  1. Vertex is connected such that it is monitoring 6 VoIP phones. There are 3 employees that take orders and 2 back office employees normally at the location. During off-peak hours, the 2 back office staff could be both on the phone, and at most, 2 employees would be involved with incoming orders. This scenario would require a 4-channel Vertex license. At peak hours, 3 calls can routinely arrive for order-takers, while one outgoing call may be in progress. Again, a 4-channel situation.
  2. The customer has recently switched from analog phone lines to VoIP service. They had 3 phone lines before they switched. One of the lines was primarily used for Faxes and/or a Credit Card machine. Chances are, a 2-channel Vertex would meet this customers immediate needs.
Adding Voice Channels

When the Vertex voice channel license needs to be increased, it is accomplished with an activation code. The Vertex Configuration Tool is used to access the unit and load the code supplied from In most cases, the cost associated will be equal to the price difference between the two licenses.