Phone Line Simulators 

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16 Port Analog Phone Line Simulator (FXS)
Part number SIM-16FXS (Basic Feature Set)
SIM-16FXS-A (Advanced Feature Set)
Basic Feature Set Advanced Feature Set
$3000 + S&H

$3100 + S&H

View Large Image16 Port Analog Phone Line Simulator (FXS)
  • Overview
  • Specificatons
  • Software
  • User Manual
  • Warranty
  • How to buy
The cheapest PSTN simulator on the market. This unit has 16 analog phone lines (FXS) making it a perfect tool for testing VoIP gateways, IVR, modems, access servers, audio conference equipment or anything that requires phone lines.
Telephone line simulator acts like a "telephone company in a box" providing dialtone, ring voltage and all advanced phone line features such Caller ID, Call Waiting, Call Hold, Three Way Calling and many others.

No only it can precisely simulate those features, it allows user to change or customize most of the call parameters such as call progress frequencies or voltage levels with a powerful Windows based management software.

Telephone line simulator is perfect tool to demonstrate functionality of any CPE that require analog phone line such as Fax machines or Fax Servers, V.90 modems, alarm systems, RAS servers, Voice mail servers.

Simulator is capable of simulating not only North American phone lines also several European standards including British Telecom.

Powerful real time logging capability allows saving call progress events to a file and analyzing those offline for troubleshooting.

Number of Ports
16 FXS Ports (Loop Start)

Interface type
FXS: RJ-11/45 8-pin modular connector

Numbering Options
User defined phone numbers

Programmable Line Parameters (FXS)
Call Progress Tones freq. and levels
Call Progress Timeouts
Dial Tone & Stutter Dial Tone
Line Impedance
Line Reversal
Metering Tones
Network Delays
On/Off Flash Hook Timing
Ring Frequency & Cadence
Ringing Voltage
Loop Start / Ground Start
In/Out Amplification

Programmable Line Features (FXS)
DTMF Generation
Hot Line Ringdown
Phone Numbers
Pulse/Tone Detection

Caller ID Features
Programmable Names (CID)
Caller ID with Call Waiting

CLASS Features
Automatic Callback
Automatic Recall
Call Forward
Call Waiting Tone & Operation
Three Way Calling

PBX Features
Hunt Group Operation
"Meet-me" conference calls
Music on Hold (MOH)
Call Forwarding
3-Way Calling

Other Line Features
Audio Line Monitoring (*)
Hook Flash Recognition
Precise Call Progress Tones

(*) not available on SIM-2FXS-A and SIM-4FXS-A

Management Interface
Serial COM Port - DB9
"PSTN Manager" Win32 Application

Supplementary Services
DNIS, ANI support
Caller ID

Operating Environment
Windows 2000/XP
Note: PC only required for setup of required configuration

Dimensions: 10"L X 12"W X 2"H

( 25.4cm X 30.48cm X 5.08cm )

Weight: 3 lb ( 1500g )

Power Requirement: 110V/220V

Storage: -40 to +40C
Operating: 0 to 40C
Humidity: Max 85%

Power Supply

Type: Wall mount, external
Input: 220V, 110V (US, Canada)
Output: 20V AC, 1A
2.5 mm jack

Virtual Console warrants the product to be free of defects in workmanship and materials for a period of 1 year.


Policies and Procedures For Refunds, Repairs and Exchanges
There are several ways to purchase this product:

  1. You can buy this product online with a credit card.   
  2. For US based companies please e-mail your NET30 PO to or fax it to 718-228-5437.
    In some cases we may ask you for credit references.
  3. For International companies please e-mail your PO to and we will provide you with a payment instructions.
    International Purchase Orders require pre-payment via Wire Transfer before product can be shipped.
If you wish to receive a formal quote:   

Shipping Policy || Return Policy || Warranty

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