Thanks to T.38, faxing is still a viable way to transmit various documents and forms. With an old school fax machine, data is sent over a phone line, translated into an image file, and then the signal is sent to the receiver on the endpoint that prints it out. Sending faxes looks a very different these days because it is now done over the internet using a VoIP phone number, instead of a landline connection through a machine.
ICT FAX a t.38 faxing solution
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HTTPS answered the need to send faxes securely from the fax server through the Internet at a time when customers were migrating telephony solutions from PSTN to IP and discovering that VoIP was not reliable for Internet fax.
ICT FAX is an open source (GPL v 3), multi-user and web based business solution with advance billing capabilities featuring duration as well as per unite billing , ICTFAX is an email to fax gateway, supports G.711 faxing , PSTN faxing and T.38 origination and termination .ICTFAX is complete faxing solution and does not need to be integerated with other open source projects to function that makes ICTFAX a unique and innovative faxing solution .
In fact, faxing over VoIP can be so problematic that many VoIP service providers recommend keeping a plain old telephone service (POTS) line or two just to be on the safe side with analog applications like fax, postage machines and alarm systems, not to mention as a backup for when the VoIP network goes down, which it invariably will from time to time. That advice gets the provider off the hook when problems pop up and brings in additional revenue, as traditional business phone lines typically cost over $50/month.
The first problem: Fax cannot be compressed so it must be digitized for transmission over IP as a full rate 64Kbps data stream. That may not matter for occasional use, but it adds up in a high volume faxing environment, especially at peak hours when everyone else is trying to send their documents or make calls at the same time. Most VoIP calls are compressed to 32kbps or less, so fax consumes at least twice the bandwidth of a compressed VoIP call. In addition, there is the IP packet overhead, which increases the required bandwidth to around 88kbps, or at least 175% more bandwidth than a VoIP call.
3. Wait for the standards bodies to introduce a new protocol that fixes the fax-over-IP problems such as delay, jitter, packet loss and other reliability issues. Keep in mind that G.711, T.37, T.38 and other protocols are still in operation decades after they were introduced. So you might be waiting a long time for the perfect, standards-body solution.
4. Move to a cloud fax model. The cloud faxing solutions from eFax Corporate provides the ideal platform for delivering faxes over IP networks because they convert the fax into an email attachment which is independent of the underlying network technology. The fax is now a series of data packets riding on a data network. Voila! Problem solved, and users can now send and receive faxes directly from their desktop, with a complete audit trail of very fax sent and received.
As you probably know, fax is a mission-critical document transfer solution for many companies and organizations. This is true despite the competition fax receives from emerging communication tools. T.38 fax and cloud-based fax are two of the options available when choosing a modern fax solution. Knowing how these solutions differ, and what each one offers, empowers you to find the best fit for your organization based on your specific needs.
When deciding between a cloud-based solution with store-and-forward fax, and one with T.38 real-time fax, it is important to consider all regulatory requirements that are applicable to your organization. For example, those organizations in the healthcare space need to be conscious of HIPAA requirements.
Right now, many businesses are looking to make changes to their fax solutions because they want to transition from their outdated PSTN to a digital solution. If this is you and your business, understanding the differences between cloud-based and T.38 fax is a must so you can choose the best fax solution for your needs. This eBook shares more useful tips and information for anyone who is considering switching away from PSTN to a more modern fax solution: Modernize Your Fax: Eight points to consider for a successful switch from PSTN to FoIP.
T38Fax.com is a T.38 Fax over IP (FoIP) service provider. We offer PSTN termination and origination (fax sending and receiving) over SIP trunks that have been optimized to offer extremely reliable faxing over WAN and LAN connections . Take advantage of our 30-day free trial, connect any T.38-capable device to our network and experience reliable fax send & receive with no wires, and no strings attached!
First, faxing occurred over phone lines. The popularity of phone-based fax machines arose with their price drop in the late 1980s, making them accessible to most businesses. In only a few short years from the middle to the end of the decade, American businesses went from 300,000 to four million machines. The convenience of sending pages of information over a phone line would have its peak until the end of the next decade when internet-based email offered an alternative to faxing.
However, even today, many businesses still use fax machines to send data. Government, legal, health care, and finance are sectors that continue to use phone-based fax machines. These industries rely on paper documents for auditing. Additionally, many feel that analog faxing offers a more secure alternative to email. But phone-based faxing has its own issues, based in the rudimentary protocol it uses.
While T.30 allowed for the basics of faxing to occur over PSTN, it did not always work as expected. Over time, improvements to T.30 allowed for clearer phone calls with less interference and background noise.
Upgrades to T.30 also helped faxing to reduce canceled documents through error correction mode (ECM). Through ECM, the two fax machines communicate at the end of each page transmission to ensure the receiving fax got all the information sent. If the machines detect missing data, the sending fax machine automatically retransmits the page. Only when the first page goes through flawlessly does the system allow the transmission of the next page. The users on either end do not have the hassle of manually redialing and sending a fax again.
First, a major difference between T.38 and T.30 protocols is the use of ECM. While analog fax machines typically used ECM as a default, most systems that use T.38 fax protocol only have this as an option or completely lack it. The result of not having ECM with digital faxes present the same issues that early analog faxing faced: poor-quality images and canceled transmissions.
Clearly, issues remain with other faxing methods. T.38 does not have universal adoption. Faxing with T.37 protocol requires both users to have fax machines. However, the one that appears most in discussions is VoIP fax.
VoIP faxing uses G.711, which is a method that delivers audio over the internet. As with T.30 and PSTN phone lines, this system does not have an optimization for transmitting raw data. G.711 uses Pulse Code Modulation (PCM) that converts data to sound for transmission, as T.30 did for analog faxes. It does not compress audio data. While this lack of compression allows for clearer phone calls, it requires high amounts of bandwidth and does not work well with faxing.
The biggest problems with online faxing today stem from companies trying to find a one-size-fits all solution. That's why at Documo, we turned cloud faxing on its head with the technology we use for mFax.
Yes, SIPStation offers Fax over IP (FoIP) using the T.38 fax relay for SIP trunking customers. T.38 specifies a protocol for real-time transmission of fax over IP networks. Faxing in SIPStation is always done on a best-effort basis, and SIP/VoIP has plenty of known issues with faxing, so you will want to test it to make sure it works for you. We recommend that you confirm the quality is acceptable before porting an existing fax number to SIPStation.
Yes, we offer a full outbound T.38 service. Unlike with some other service providers, SIPStation actually takes your T.38 call and sends it to our fax processing server, which converts T.38 to standard analog fax and sends it out over actual copper PRIs. This helps increase the reliability of outbound faxing.
SIPStation unlimited 2-way trunks have both voice and T.38 fax capability. FAXStation fax trunks are only for fax, and they use a proprietary FoIP mechanism that virtually guarantees reliable fax transmission. FAXStation is an advanced Fax-over-IP (FoIP) solution capable of handling all internet connection types, including satellite and cellular networks.
We are pleased to announce that our Power-T.38 fax-optimized SIP trunks have been certified compatible with Dialogic's Brooktrout SR140 fax software. SR140 is a host-based Fax over IP (FoIP) engine that brings the power of the industry-leading Dialogic Brooktrout fax hardware products (such as the TR114 & TR1034 fax boards) to software-based solutions. Dialogic SR140 is one of the most mature, most widely deployed T.38 implementations in the world.
Microsoft Exchange Unified Messaging (UM) relies on certified fax partner solutions for enhanced fax features such as outbound fax or fax routing. By default, Exchange servers aren't configured to allow incoming faxes to be delivered to a user that's enabled for UM. Instead, an Exchange server redirects incoming fax calls to a certified fax partner solution. The fax partner's server receives the fax data and then sends it to the user's mailbox in an email message with the fax included as a .tif attachment. 2ff7e9595c
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