Fax Voip T38 Fax & Voice

Fax Voip T38 Fax & Voice

Fax and Answering Machine for your SIP/H.323/ISDN CAPI 2.0 line. Support for Multiple SIP Registrations. Call Routing. Voice Fax Modem for your Fax & Voice software. Color faxes over VOIP and ISDN. Mail to Fax. Incoming Fax Routing: Route through e-mail, Store in a folder, Print, Custom Routing. Fax-on-Demand. Outgoing Fax Routing: E-mail Delivery Receipts, Store in a folder, Print, Custom Routing.

Fax Voip Core Features

  • 1

    T.38 and Audio Faxes over VoIP

    Both T.38 and Fax over G.711 codec are supported. Flexible settings allow you to send and receive faxes using many SIP/H.323 telephony services over the world. Fax Voip is easily integrated into the telephone network of your company.
  • 2

    Compatibility with Fax and Voice Software

    Use Microsoft Fax or any other standard fax-voice software to send or receive faxes and audio messages via VoIP. Replace your hardware modem by the new Virtual COM Ports (voice modems) that Fax Voip installs into your system.
  • 3

    Fax Voip Console and Fax Voip Printer

    Use Fax Voip Console to manage your outgoing and incoming faxes. Using Fax Voip Virtual Printer you can send a fax from any Windows application. Send and receive faxes and audio messages via so-called Fax Voip Built-in Lines.
  • 4

    Incoming and Outgoing Fax Routing

    Incoming and outgoing faxes can be routed through the following fax routing methods: E-mail, Store in a folder, Print, Custom Routing.
  • 5

    E-mail to Fax

    The Mail to Fax function will let you send faxes directly from your e-mail application.

Fax Voip Features & Technologies


Session Initiation Protocol (SIP) is the most commonly used VoIP signalling protocol. Fax Voip can be configured as standard SIP client. Multiple SIP registrations are supported.


H.323 is one of the standards used in VoIP. Fax Voip is able to operate as independent H.323 endpoint or can register with H.323 gatekeeper (GK).

CAPI 2.0

CAPI 2.0 is an application programming interface standard used to access ISDN equipment. CAPI 2.0 driver is supplied by the manufacturer of your ISDN card.

T.38 Fax

T.38 - the most reliable standard used to transmit faxes over VoIP in real time. Isolates from the delays, timing jitter, and packet loss experienced in VoIP networks.

Fax over G.711 codec

Transmitting a fax over voice codec. Can be used with VoIP providers that don't support T.38 but provide good-quality voice channel.


Voice Modem functionality allows to use Fax Voip with voice modem software (e.g. answering machine). Also you can send audio messages via built-in lines.

Virtual COM Ports

Virtual Serial Port interface allows standard fax or voice software to communicate with Fax Voip. It is a bridge between your fax or voice software and VoIP.

Voice Fax TAPI Modem

Fax Voip 14.4K TAPI Voice-Fax Modem driver is reguired for TAPI compatible standard fax and voice applications (e.g. Microsoft Fax).

Built-in Lines

So called Fax Voip Built-in VOIP/ISDN Fax/Audio lines allow you to send or receive faxes and audio messages using Fax Voip Console application.

Fax Voip Printer

Using Fax Voip Virtual Printer, you can create a fax from any Windows application. Some file formats (PDF, TIFF, JPEG) can be converted into fax directly.


Fax to E-mail. E-mail to Fax: Cover Pages, Sender Information, Mail to Fax Rules. Customizable Email Templates. SMTP, POP3/IMAP, SSL. Digitally signed e-mail messages.

Fax Routing

The incoming fax can be delivered via e-mail, copied to folder or printed. The outgoing fax can be copied to folder, printed, or e-mail delivery receipt can be sent.

What customers say

Fax Voip Screenshots

  • Full Screen Full screen
  • Virtual COM Ports (modems) Virtual COM Ports (modems)
  • Send a Fax Send a Fax
  • Send Audio Message Send Audio Message
  • Fax Voip Control Panel Fax Voip Control Panel
  • SIP Registration SIP Registration
  • Registration with H.323 GK Registration with H.323 GK
  • ISDN CAPI 2.0 Connection ISDN CAPI 2.0 Connection
  • Outgoing VOIP Call Routing Outgoing VOIP Call Routing
  • Incoming VOIP Call Routing Incoming VOIP Call Routing
  • Route faxes through e-mail Route faxes through e-mail
  • Store faxes in a folder Store faxes in a folder
  • Fax Settings Fax Settings
  • SMTP Settings SMTP Settings
  • POP3 / IMAP Settings POP3 / IMAP Settings
  • E-mail Templates E-mail Templates
  • Cover Pages Cover Pages
  • Mail to Fax Settings Mail to Fax Settings
  • Mail to Fax Rules Mail to Fax Rules
  • E-mail Delivery Receipts E-mail Delivery Receipts
  • Configuring Microsoft Fax Configuring Microsoft Fax
  • Fax Voip Console - Outbox Fax Voip Console - Outbox
  • Fax Voip Console - Inbox Fax Voip Console - Inbox
  • Fax on Demand Fax on Demand
  • SendFax.exe Tool - Built-in lines SendFax.exe Tool
  • Configure SendFax.exe (Built-in lines) Configure SendFax.exe
  • SendAudio.exe Tool - Built-in lines SendAudio.exe Tool
  • Track Fax Job (Microsoft Fax) Track Fax Job