So, you need to send faxes and you need an answering machine. You’ve got used to working with your fax software. You’ve got used to working with your answering machine software.

You want to send faxes over VoIP or ISDN and you know about T.38 fax protocol. You want to use the answering machine with your SIP, H.323 or ISDN line. You want to use your favourite fax and voice software but you don’t know how to do it.

No problem! No problem! Fax Voip T.38 Modem is a solution for you and your business.

What is Fax Voip T.38 Modem? From the perspective of your fax or voice application, it is a Voice Fax Modem. Fax Voip T.38 Modem installs Virtual COM Ports and virtual 'Fax Voip 14.4K TAPI Voice-Fax Modems' onto your system. You can setup your Fax & Voice program to operate with Fax Voip COM ports or virtual modems. From the perspective of your VoIP internet network, it’s a SIP/H.323 client with T.38 and G.711 Fax support. From the perspective of your ISDN line, it’s CAPI 2.0 client with audio fax support. With Fax Voip T.38 Modem you can send and receive T.38 and audio (color and black-and-white) faxes and voice messages without any hardware, using your favourite Fax & Voice program. Fax Voip T.38 Modem is the ideal solution for the implementation of Fax and Voice Mailbox into SIP, H.323 or ISDN network. You can use Fax Voip T.38 Modem with your VoIP or ISDN-based PBX or with your SIP/H.323/ISDN Provider. Fax Voip T.38 Modem can also support from 1 to 100 virtual lines simultaneously.

The figure below shows how Fax Voip T.38 Modem application works.

Multiple SIP Registrations and Call Routing functions make your system the most flexible as well as allowing you to work with different SIP and H.323 providers simultaneously.

Fax Voip T.38 Modem supports Caller ID and Dial a Phone Number Extension features.

Fax Voip T.38 Modem is a fully-functional system for sending faxes via e-mail (Mail to Fax) and for receiving faxes to e-mail (Fax to Mail).

The Mail to Fax - Microsoft Fax function will let you send faxes directly from your e-mail application. The body of your e-mail messages will act as the fax cover page, while any attached documents (e.g. PDF, TIFF, or TXT formats) will be converted into additional fax pages. Faxes can be sent to multiple recipients, and you can mix different formats as attachments to your messages.

Incoming Routing Methods (Microsoft Fax): Route through e-mail, Store in a folder, Print allow you to route incoming faxes to recipients on the network. Custom routing for incoming faxes (Microsoft Fax) allows you to easy add any routing functionality by using custom application that is started after receiving a fax.

Outgoing Routing Methods (Microsoft Fax): E-mail Delivery Receipts, Store in a folder, Print allow you to route outgoing faxes depending on the recipient's fax number, and the success or failure of sending the fax. Custom routing for outgoing faxes (Microsoft Fax) allows you to easy add any routing functionality by using custom application that is started after sending a fax.

Fax Voip T.38 Modem has been successfully tested with Microsoft Fax, BVRP Classic Phone Tools 9, FaxTalk Messenger Pro 7.5, CallStation, WinFax Pro and many other well-known programs.

Fax Voip T.38 Modem has been successfully tested with T38FAX, Callcentric, babyTEL, MondoTalk and many other VoIP service providers.