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Besides using traditional telephone network or PSTN method to implement a network fax solution, FaxCore works with Cantata (The number one world leading telecom equipment provider) to using Brooktrout TR1034 Fax Board or SR140 software based fax platform to provide a Fax over IP solution as well.
From the source of Cantata website, companies can achieve dramatic savings by integrating their fax servers with their VoIP network. Implementing an IP based fax server enables companies to:
1. Reduce network management and maintenance costs with a single converged voice, fax and data network.
2. Leverage their corporate WAN to consolidate and centralize fax services across multiple locations, which can reduce management and telecommunications costs.
3. Lower their long distance fax bill with least cost routing over the WAN.
4. Eliminate analog fax lines and integrate multi-function peripherals to deliver “walk up” fax services over their VoIP network.
Understanding how faxes are sent over an IP network requires a basic understanding of the T.38 and T.30 protocols. T.38 is the protocol that describes the process for sending and receiving faxes in real-time over a packet network. T.30 is the protocol that describes the communication process between two fax devices on a circuit-switched network.
For an Internet aware fax device, such as a fax board, to reliably send and receive faxes over IP, that device must support T.38. T.38 is designed to preserve the traditional fax experience and ensures faxes are successfully sent and received by making adjustments for jitter, latency and packet loss, which are inherent in all IP networks. Without T.38, fax devices, which are sensitive to timing, cannot reliably send and receive faxes over an IP network.
The diagram above shows a typical real-time fax over IP implementation with a Brooktrout based fax server sitting behind a T.38 gateway that supports SIP or H.323 call control.
Faxing over an IP network involves a piece of equipment, called a gateway. Shown in the diagram below, the gateway acts as an intelligent bi-directional bridge between circuit-switched and IP networks.
While the gateway sits between the two fax end point devices, in this case a fax server and a fax machine, the faxing intelligence resides in the end point devices. As in traditional circuit switched fax technology, fax-over-IP devices are responsible for negotiating, synchronizing and communicating with each other.
On the back end, the gateway sends and receives T.30 data wrapped in T.38 packets while in front it receives a traditional T.30 fax signal. The gateway recognizes the data as a fax and the repackages the data for consumption by both end points.
T.30, the same protocol used for faxing over traditional circuit switched networks, remains at the heart of every IP fax connection with each end point requiring a high degree of T.30 interoperability. This is necessary since Internet aware fax devices must also be able to communicate with legacy fax devices.
FaxCore and Cantata are certified for FoIP on the following systems:
Cisco 2600 Series (IOS version 12.3 SIP, H.323)
Cisco 2800 Series (IOS version 12.4 SIP, H.323)
Cisco 3700 Series (IOS version 12.3 SIP, H.323)
Cisco 3800 Series (IOS version 12.4 SIP, H.323)
Cisco AS5400 Universal (IOS version 12.3 SIP, H.323)
Cisco 1700 Series (IOS version 12.3 SIP, H.323)
More new different brand name and model of VOIP gateways will be supported in the near future, plesae check with our technical consultant to get the updated equipment list.
 
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