Fax Voip Softphone

SIP/H.323 software telephone.

Call Recording. Playing audio messages into the telephone line. Sending and Receiving T.38 and Audio Faxes. Music on Hold. Call Transfer. Call Forwarding.
Phone Book. Log Book.
Random Phone Calls.
Read More

Fax Voip And Microsoft Fax

Fax Voip and BVRP Classic Phone Tools

Fax Voip and FaxTalk

Fax Voip and AXON PBX

Incoming Fax Routing


When receiving faxes using Fax Voip Console application (via built-in VOIP/ISDN fax lines) or using Microsoft Fax application (via Fax Voip Virtual COM Ports), you can configure Incoming Routing Methods to route incoming faxes to recipients on the network... The following Incoming Routing Methods can be configured:

Route through e-mail - Incoming faxes can be delivered via e-mail to one or more e-mail recipients. To, Cc and Bcc e-mail fields can be used. The fax delivery format can be TIFF, PDF or SFF.

Store in a folder - Incoming faxes can be copied to one or more local or network folder. The format for saving incoming faxes can be TIFF, PDF or SFF.

Print - This method allow to automatically print Incoming faxes to one or more printers.

Read More



Fax on Demand allows callers to retrieve information via fax on the same call (from a fax machine). Fax on Demand is the ideal electronic assistant for companies and organizations who need to have information constantly available to their customers in places other than their website.Read More..


Virtual COM Ports (modems)

  • Up to 100 Virtual COM Ports (modems) to connect to standard fax program directly or via TAPI
  • Digitally signed Virtual COM port driver that is fully compatible with 64-bit versions of Windows 10, Windows 8/8.1, Windows 7, Vista,  Windows Server 2012/2012R2 and Windows Server 2008/2008 R2
  • Fax Voip 14.4K TAPI Voice-Fax Modem driver for modems (TAPI compliant)
  • Support for 3rd party Virtual COM Ports drivers
  • Simplified procedure of installing Virtual COM Ports and modems
  • Fax Class 1, UTI-T V.27ter/V.29/V.17, T.30 Fax Group 3 up to 14.400 Bauds
  • Error Correction Mode (ECM)
  • T.38 Real-time Fax over IP, T.38 UDPTL Redundancy, Force T.38 mode
  • Real-time Audio G711 Fax over IP
  • Auto Fall back to G711 Fax mode if T.38 not available
  • Real-time Audio Fax over ISDN CAPI 2.0
  • Color Faxes over VOIP and ISDN
  • Fax-On-Demand
  • Voice Modem support (UTI-T V.253 Conexant/Rockwell, audio formats: 16-BIT LINEAR, PCM, ALAW, ULAW)
  • Voice Modem support via Unimodem Audio Device driver (TAPI)
  • Voice Answering Machine support
  • Voice Greeting before sending or receiving fax
  • Remote Access to Voice and Fax Mailbox (DTMF)
  • Listening to a telephone line through computer speakers
  • Dialing a Phone Number Extension (DTMF)
  • Caller ID Number, Caller ID Name (direct COM-port connection and via TAPI)
  • Called Number (DID). Passing Called Number (DID) via Caller ID string (workaround)
  • Route through e-mail Incoming Routing Method (Microsoft Fax)
  • Store in a folder Incoming Routing Method (Microsoft Fax)
  • Print Incoming Routing Method (Microsoft Fax)

Fax Voip built-in VOIP/ISDN Fax/Audio Lines

  • T.30 Fax Group 3 up to 14.400 Bauds
  • Error Correction Mode (ECM)
  • T.38 Real-time Fax over IP, T.38 UDPTL Redundancy, Force T.38 mode
  • Real-time Audio G711 Fax over IP
  • Auto Fall back to G711 Fax mode if T.38 not available
  • CAPI Fax. B3 Protocol 4: T.30 for Group 3 fax and B3 Protocol 5: T.30 for Group 3 fax extended
  • Real-time Audio Fax over ISDN CAPI 2.0
  • Fax Station ID, Fax Header
  • Separate ECM/Bitrate settings for outgoing/incoming, T.38/audio and modem/built-in faxes
  • CAPI fax: possibility to select B3 Protocol, Maximum Bitrate, disable ECM and enable High Resolution. Separated settings for outgouing and incoming CAPI faxes
  • Receiving faxes directly into TIFF, PDF or SFF files
  • Unlimited number of incoming fax sessions
  • Fax Voip Virtual Printer
  • Direct Document to Fax Converting. Supported formats: PDF, TIFF, SFF, QFX, BMP, JPEG, GIF, PNG, ICO, WMF (EMF)
  • Sending audio messages
  • Fax Voip Send Audio Message Wizard
  • Sending a fax or audio message to multiple recipients. Loading a list of faxes (phone numbers) from txt file
  • Sendfax.exe command line utility
  • SendAudio.exe command line utility
  • Fax Voip Console. Ribbon user interface
  • Scheduled fax or audio message sending, Delivery Notification via e-mail
  • Retrying and restarting of failed faxes and audio messages, pause and resume fax or audio message jobs
  • Viewing current status of outgoing and incoming faxes and audio messages in the Fax Voip Console
  • Saving faxes in different graphic formats: TIFF, PDF, SFF, BMP, JPEG, GIF, PNG, PCX.
  • Possibility to split faxes into pages when saving. Possibility to save only selected pages.
  • Route through e-mail Incoming Routing Method
  • Store in a folder Incoming Routing Method
  • Print Incoming Routing Method
  • Fax-On-Demand

SIP/H.323/ ISDN CAPI 2.0 support

  • SIP over UDP, SIP over TCP and SIP over TLS support
  • SIP Outbound Proxy
  • Multiple SIP Registrations, Authentication Name, Domain/Realm, SIP Contact URL, Expires Header, Forcible SIP Registration
  • Direct SIP Call Routing
  • Possibility to change SIP User Agent
  • H.323 support, Fast Start, H.245 Tunneling, Telephone numbers list
  • Registration with H.323 Gatekeeper, Search for GK, Time to Live
  • H.235 MD5 GK Authentication
  • Direct H.323 Call Routing
  • ISDN CAPI 2.0 support
  • Direct ISDN CAPI 2.0 Call Routing
  • Possibility to select ISDN Controller # and B-channel # for outgoing ISDN CAPI 2.0 calls
  • Tel URI Scheme support (with SIP only)
  • VOIP audio formats: G.711-uLaw-64k, G.711-ALaw-64k, G.723.1, G.726-32k, GSM-06.10, iLBC, SpeexNB, SpeexWB
  • CAPI 2.0 audio formats: CCITT G.711 A-law, CCITT G.711 u-law
  • Dummy G.729 codec for compatibility with T.38 only
  • STUN server support
  • Outgoing and Incoming VOIP Call Routing
  • Overriding parameters via Call Routing: Username (Caller ID Number), Display Name (Caller ID Name), MaxBitrate, ECM, T38 UDPTL Redundancy, Fax Station ID, Fax Headline, Codecs

Mail to Fax (Mail to Audio) and Fax to Mail

  • Fully-functional Mail to Fax and Fax to Mail system based on Microsoft Fax Service
  • Fully-functional Mail to Fax (Mail to Audio) and Fax to Mail system based on built-in VOIP/ISDN Fax/Audio Lines
  • Customizable Email Templates
  • Delivery Receipts via e-mail
  • SMTP support. CDO.Message, System.Net.Mail. Implicit SSL, Explicit SSL (STARTTLS). UTF-8 encoding
  • Sending digitally signed e-mail messages. Clear signing. Opaque signing
  • POP3/IMAP support. SSL support
  • Ignoring invalid e-mail server SSL certificate


  • Fax Voip Control Panel
  • Possibility to run as Windows Service
  • Multi-Language support. Simple mechanism for translation into any language
  • Address Book (Windows Contacts) support
  • Creating simple and complex (to large number of recipients) Microsoft Fax Service fax jobs using Fax Voip Virtual Printer
  • Checking for new versions of the program
  • Fax Voip Backup or Restore Wizard
  • Selective saving the configuration and user data when you reinstall the program
  • Unicode support
  • Full compatibility with operating system Visual Styles

System Requirement

Platforms supported *

  • Windows 10, Windows 10 64-bit
  • Windows 8.1, Windows 8.1 64-bit, Windows Server 2012 R2
  • Windows 8, Windows 8 64-bit, Windows Server 2012
  • Windows 7, Windows 7 64-bit, Windows Server 2008 R2
  • Windows Vista, Windows Vista 64-bit, Windows Server 2008, Windows Server 2008 64-bit
  • Windows Server 2003, Windows Server 2003 x64 Edition, Windows XP x64 Edition
  • Windows XP
  • Intel-compatible PC with 32-bit or 64-bit (x64) processor
  • Microsoft.NET Framework 4.5 or later (Windows 10/8.1/8/7/Vista/2012/2008)
  • Microsoft.NET Framework 2.0 Service Pack 1 or later (Windows XP/2003)

* FaxVoip Software does not guarantee the correct operation of the program when you install software on Virtual Machine of any type. In the case of specific problems in such installations, technical support is not provided.

Additional system

 Virtual COM Ports Software compatibility

Fax & Voice Software compatibility

Fax Software compatibility

Recommended VOIP service providers

SIP PBX Software compatibility

H.323 Software compatibility

Network requirements

  • Network connection from the local computer to the SIP or H.323 server