Pricing
Simple, Usage-Based Pricing
Pay for what you use. No contracts, no activation fees, no minimum term. Start with a 30-day free trial and $25 in credit.
Three Components. One Simple Bill.
Power-T.38 pricing has three parts: your SIP trunk, your fax numbers, and your usage. That’s it. No setup fees, no activation charges, no minimum term. You start with a 30-day free trial and $25 in credit — enough to put real fax traffic through the network before committing to anything.
Power-T.38 Pricing
Most customers need one SIP trunk. Each trunk supports unlimited concurrent calls across all your fax numbers. A second trunk is required only if you need to connect a second SIP device or server.
At least one fax number per SIP trunk is required. Your first number becomes the billing telephone number (BTN) for the account.
Usage is billed in minutes, the same way traditional phone calls are — even though T.38 is a data protocol, not voice.
Keep Your Existing Fax Numbers
Switching carriers should not mean changing the fax numbers your business has been using for years. Number porting is included with every T38Fax account — there is no per-number porting charge, no expedite fee, and no minimum volume required to port in.
T38Fax supports porting from virtually any carrier. Local fax numbers, toll-free numbers, and DID blocks are all supported. We handle the LOA paperwork, coordinate with your existing carrier, and advise on sequencing the cutover to minimize disruption to your fax operations.
If you are porting a high-volume range or coordinating a multi-site cutover, mention it when you sign up — we will work directly with you to sequence the port windows around your fax traffic patterns.
Volume Discounts
Volume discounts are available for usage above 1,000 minutes per month. Discount tiers are based on your committed monthly volume and are discussed directly with our sales team — we don’t publish a rate sheet, because the right arrangement depends on your specific deployment and usage patterns.
Running high-volume fax operations or evaluating T38Fax for a multi-site rollout? Our sales team can model costs for your specific configuration before you commit to anything.
Contact SalesHealthcare and Regulated Industries
If you are evaluating T38Fax for a HIPAA-covered environment, a SOC 2 reporting context, or any deployment with documented compliance requirements, our pricing model is structured to make budget modeling straightforward. Standard usage-based rates apply across regulated and unregulated accounts — there is no compliance surcharge, no per-BAA fee, and no separate “HIPAA tier” at a higher price point. T38Fax is SOC 2 certified and HIPAA compliant on every account; a Business Associate Agreement is available on request at no additional charge.
For organizations whose compliance team needs to confirm posture before approving a vendor, our full security and compliance details are documented separately.
Security & Compliance DetailsWholesale & Service Provider Pricing
If you’re a voice service provider, ITSP, or UCaaS platform looking to offer reliable T.38 fax to your customers, you’re in the right place. T38Fax works directly with service providers to offload fax traffic — you maintain the customer relationship, we handle the T.38.
Wholesale pricing is available for service providers who can meet volume commitments. Rates are usage-based and structured around your call volume, not fixed seats.
Learn how other ITSPs and UCaaS providers have made fax a competitive advantage instead of a liability — then request wholesale pricing for your account.
Voice Service Providers Request Wholesale PricingA Few Things Worth Knowing
Each fax page is roughly one minute. This makes cost estimation straightforward: multiply your expected monthly page count by your per-minute rate and you’ll have a close estimate of your usage charges before you start.
Usage-based pricing means no bill shock. There is no flat-rate or unlimited plan. Your charges scale directly with your fax activity — if you send more, you pay more; if you send less, you pay less. For operations with predictable volume, this is typically more cost-efficient than a flat-rate plan sized for peak usage.
T.38 transmissions are billed in minutes — not pages, not kilobytes. Even though T.38 is a data protocol, it operates in real time like a phone call. Billing in minutes is the industry standard and makes your costs directly comparable to traditional POTS-line fax.
A second SIP trunk is only needed for a specific reason. If your setup involves two separate SIP devices or servers that need to connect to your T38Fax account simultaneously, you’ll need a second trunk. One trunk handles the vast majority of deployments.
SIP trunk pricing and per-page cloud fax pricing are not directly comparable. Cloud fax services bill per page; T38Fax bills per minute of fax transmission. For most operations, the per-minute SIP trunk model produces lower total cost — particularly at volume — because you are not paying a per-page premium on top of network charges. The right way to compare is to run your actual page volume against both pricing models.
Start with $25. No Commitment.
Every new account starts with a 30-day free trial and $25 in credit — enough to run real fax traffic through the network and confirm everything works with your specific equipment and configuration.
There’s no automatic conversion at the end of the trial. If you want to continue, you activate to a paid plan. If you don’t, the account simply stops.
Unlimited technical support is included from day one of your trial. Bring us your fax server, your ATA, your IP-PBX — we've seen it before.
Start My Free TrialStill Evaluating?
Not sure T38Fax is the right fit yet? See the full technical case — why our in-house T.38 stack, ECM error correction, and carrier architecture produce results that pass-through providers can't match.
Why T38FaxSee exactly how Power-T.38 is built — one T.38 stack, gateways inside carrier networks, and ECM on every call. One product, deployed three ways.
Our Solution: Power-T.38Need Help Estimating Costs?
If you’re evaluating T38Fax for a high-volume deployment, a regulated industry environment, or a multi-site rollout, our sales team can help you model costs for your specific configuration before you commit to anything.
Questions about pricing, volume discounts, or service provider accounts? We'll give you a straight answer.
Contact SalesFrequently Asked Questions
- A basic T38Fax account has three cost components: a SIP trunk at $7/month, fax numbers at $2/month each for local DIDs or $5/month for toll-free, and usage at $0.025/minute for outgoing calls and incoming calls to local numbers ($0.050/minute incoming to toll-free). There are no setup fees, activation charges, or minimum term commitments. Volume discounts apply above 1,000 minutes/month — contact our sales team for tier details. Every new account starts with a 30-day free trial and $25 in credit, so you can confirm costs against real traffic before committing to anything.
- A SIP trunk is your connection from T38Fax to your fax equipment — your fax server, ATA gateway, or IP-PBX. One trunk is enough for most customers: it supports unlimited concurrent fax transmissions across all your fax numbers. A second trunk is required only if you need to connect a second SIP device or server to your account.
- Your bill has three components: the SIP trunk fee ($7/month per trunk), your fax number fees ($2/month per local number, $5/month per toll-free), and usage charges based on minutes used. A 10-minute outgoing fax to a US number is billed at $0.025/minute.
- Yes. Volume discounts apply to usage above 1,000 minutes per month. Contact our sales team to discuss discount tiers for your volume.
- No. T38Fax uses usage-based pricing — you pay for the minutes you actually use. There is no flat-rate plan. For operations with predictable volume, we recommend estimating your monthly minutes to model your costs before starting a trial. Our sales team is happy to help.
- Your account stops working unless you activate it to a paid plan. There is no automatic conversion — you decide if and when to continue. The $25 trial credit is yours to use during the 30-day period.
- By minute. T.38 fax transmissions are billed in minutes, the same way traditional phone calls are billed — even though T.38 is a data protocol, not voice. A typical fax page takes roughly one minute to transmit, so page count and minute count are close approximations of each other. Because most pages transmit in roughly a minute, our per-minute pricing makes it straightforward to estimate your monthly usage from your page volume.