Pay by Link has become one of the most widely adopted methods for remote payment collection. Its promise is simple: generate a payment link, send it by SMS, email or WhatsApp, and let the customer complete the transaction independently on a hosted payment page.
For many digital-first use cases, this model works. It is simple, scalable and operationally convenient. It is particularly useful when the customer is digitally autonomous, the payment is straightforward, the amount is not disputed, the transaction is low risk, and the customer is comfortable completing the process alone.
But in a contact center, the reality is very different.
In assisted payment environments, the payment does not usually start from a self-service digital journey. It starts from a conversation. An agent has reached the customer, answered questions, explained the amount, handled objections, negotiated a repayment plan, generated trust and created a real payment intention.
At that precise moment, sending the customer a payment link may look efficient from an operational perspective. Commercially, however, it can be the most expensive break in the entire journey.
The customer is moved from voice to web.
From assistance to self-service.
From trust to uncertainty.
From urgency to delay.
From a live payment intention to a process that can be abandoned at any step.
The issue is not whether a company can send a payment link. The real issue is whether the customer will open it, trust it, complete the form, pass authentication and actually pay.
According to the funnel analysis included in Pay by Call SL’s market study, when delivery, reading, click-through, mobile checkout abandonment and SCA/3D Secure friction are combined, a Pay by Link sent by SMS may end up converting only 8 to 20 payments out of every 100 links sent under normal conditions. This figure is not presented as a single isolated market statistic, but as a consolidated funnel estimate based on multiple benchmarks and conversion steps.
For contact centers, that distinction is critical. Sending 100 payment links does not mean creating 100 real payment opportunities. It may mean closing only a small fraction of them. And that loss is often hidden behind apparently positive operational metrics: messages sent, links generated, campaigns launched, reminders delivered.
But the metric that matters is not how many links were sent.
The metric that matters is how many payments were completed.
The strategic mistake: breaking the call at the moment of highest payment intent
In many industries, payment is not just a digital action. It is the result of human interaction.
A customer calls to avoid a utility disconnection.
A debt collection agent negotiates a partial repayment.
A citizen contacts a public administration to pay a tax, fee or fine.
An insurance customer needs to renew a policy.
A patient wants to settle an outstanding medical bill.
A hotel guest confirms a high-value reservation.
A support agent helps a subscriber reactivate a failed payment.
In all these cases, the agent is not merely a cost center. The agent is the trust layer that makes payment possible.
The call creates context.
Context creates trust.
Trust creates intent.
Intent creates payment.
When the company sends a link after that interaction, it introduces a new and unnecessary layer of friction. The customer may not open the SMS. They may distrust the link. They may postpone the action. They may fail the web authentication step. They may not understand the form. They may simply abandon the process.
The result is always the same: a payment intention that does not become a payment.
This is where Pay by Call SL changes the logic of assisted remote payments.
Pay by Call: converting payment intent inside the call
The PaybyCall platform is not designed to replace Pay by Link in every scenario. Pay by Link will continue to be useful for digital customers, simple amounts, low-risk transactions and fully self-service journeys.
But PaybyCall solves the scenarios where the link structurally fails: assisted payments, urgent payments, vulnerable customers, negotiated amounts, MOTO environments, low digital literacy, high-value transactions and calls where the customer has already expressed a clear willingness to pay.
The thesis is simple:
Pay by Link sends a payment opportunity.
Pay by Call converts payment intent inside the call.
With PBC LAA + PBC 3DS, the agent remains on the line and assists the customer throughout the payment process, without ever seeing or hearing sensitive card data. The customer enters their card details using the telephone keypad, while the system applies DTMF masking so that the agent, the call recording and the contact center systems are protected from card data exposure.
The customer does not leave the conversation.
The agent remains available.
The trust built during the call is preserved.
The payment is completed inside a secure voice environment.
With PBC TFA + PBC 3DS, the agent transfers the customer to a secure IVR at the moment of payment. The agent is immediately released and can handle another call, while the customer completes the transaction in a PCI-compliant environment. This model is particularly valuable for high-volume BPOs and contact centers where Average Handle Time is a critical metric and agents cannot remain on the line during the entire payment process.
The addition of PBC 3DS is the most important breakthrough. PBC 3DS enables 3D Secure authentication within the voice channel, without redirecting the customer to a website and without breaking the call. The Pay by Call study describes PBC 3DS as a technology protected by national, international and European patent applications for managing multi-factor authentication flows over real-time voice channels.
This matters because traditional telephone payments have historically been treated as MOTO transactions, where standard 3D Secure authentication is not naturally available because there is no web session. The usual workaround has been to send the customer a link so the authentication can happen online.
But that workaround creates exactly the friction that causes abandonment.
PBC 3DS changes the equation: it allows the customer to stay in the call while the payment is authenticated, bringing the voice channel closer to the level of protection associated with authenticated e-commerce.
Conversion: the number every contact center should look at
The conversion gap is the argument no contact center should ignore.
Pay by Link is often measured by messages sent, links delivered or links opened. But those metrics are not the same as completed payments.
The Pay by Call market study estimates 8–20 completed payments per 100 Pay by Link SMS messages sent in a typical funnel. By contrast, the Pay by Call system records a 76% observed rate of successful authorizations on initiated transactions, with further improvement expected through conversational AI.
These are not identical metrics: one measures the full funnel from link sent to payment completed, while the other measures successful authorizations once the payment has been initiated in the voice flow. But the comparison reveals the essential point: when the customer is already on the phone and ready to pay, keeping them in the assisted voice journey can dramatically improve the probability of completion compared with sending them into an asynchronous web process.
The real cost of a failed Pay by Link is not the cost of the SMS.
It is the unpaid debt.
The lost sale.
The abandoned reservation.
The unpaid invoice.
The wasted call.
The agent time that did not produce cash collection.
The customer who was ready to pay but never completed the link.
For a contact center, the highest-value moment is when the customer is present, engaged, identified and willing to pay. Sending that customer away from the call means accepting the risk of losing a transaction that was already close to completion.
Recovering the payments that Pay by Link did not convert
Pay by Call is not only a stronger alternative for assisted payment scenarios. It can also become a powerful recovery layer for failed Pay by Link flows.
Every day, companies generate thousands of payment links that do not become payments:
links that are never opened,
links that are abandoned,
links that expire,
payments that are started but not completed,
customers who need help,
users who distrust SMS messages,
payers who fail authentication,
customers who simply lose momentum.
In many organizations, these failed links are treated as a digital follow-up problem. The company sends another SMS, another reminder, another email or another campaign.
But if the customer did not open the first link, did not trust the message, failed authentication or needed human assistance, repeating the same channel may not solve the problem.
A secure PCI-compliant phone call can.
Pay by Call can activate a voice-based recovery flow to rescue payments that Pay by Link did not close. The agent can explain the reason for the payment, confirm the amount, rebuild trust, handle objections and guide the customer into a secure voice payment journey.
This makes Pay by Call complementary to Pay by Link, not opposed to it.
The link can be the first attempt for digitally autonomous customers.
Pay by Call can be the closing channel for assisted payments.
And Pay by Call can also be the recovery channel for links that were not opened, abandoned or expired.
The commercial message is powerful:
Pay by Link tries to collect.
Pay by Call closes the payment.
And when the link fails, Pay by Call can recover the transaction.
Security: customers are increasingly suspicious of links
Pay by Link also faces a growing trust problem.
Consumers are exposed every day to fraudulent SMS messages, fake delivery notifications, impersonation attempts, banking scams and smishing campaigns. As a result, even legitimate payment links can trigger suspicion.
The Pay by Call study highlights the structural vulnerability of payment links to impersonation: opaque or shortened URLs, urgency-based messages, patterns similar to fraudulent SMS campaigns and the absence of a previously authenticated channel between the merchant and the payer.
This is a major issue for payment conversion. If customers have been trained by banks, regulators and cybersecurity campaigns not to click suspicious links, companies cannot expect every customer to trust an SMS payment request, especially when the amount is high, urgent or unexpected.
Pay by Call removes that risk from the payment journey.
There is no payment link to impersonate.
No fake URL to click.
No fraudulent checkout page to confuse with a legitimate one.
No channel switch from a trusted conversation to an unknown web page.
The payment happens inside a controlled voice environment, with DTMF masking, PCI compliance and no card data exposure to the agent.
For sectors where trust is critical —public administrations, utilities, insurance, healthcare, debt collection, travel and hospitality— this difference can be decisive.
PCI-DSS 4.0.1: compliance also favors managed secure voice
The evolution of PCI-DSS 4.0.1 reinforces another key point: compliance scope.
A pure redirect Pay by Link model can remain low-scope in certain cases. But when payment pages involve iframes, JavaScript or merchant-controlled web elements, the compliance burden can increase significantly. The Pay by Call study compares Pay by Link scenarios with secure voice payment models and highlights that iframe/JavaScript payment flows may move merchants toward SAQ A-EP, while managed voice payments with DTMF masking and PCIaaS can keep the merchant in SAQ A or out of scope for sensitive card data exposure.
For a contact center, this is not a minor technical distinction.
If agents hear card data, if recordings capture tones, if internal systems touch sensitive payment information, the organization expands its PCI exposure. That means more controls, more audit complexity, more operational risk and more cost.
With PaybyCall, the sensitive payment layer is handled through a specialized PCIaaS platform. The contact center can process secure telephone payments without exposing agents, recordings or internal systems to cardholder data.
That is the core value of PCI Compliance as a Service: turning voice payments from a compliance problem into a managed secure payment capability.
Where Pay by Call has a structural advantage over Pay by Link
Pay by Link remains valuable for digital customers and simple journeys. But there are specific sectors where secure voice payments have a structural advantage.
In debt collection, payment is often the result of negotiation. The agent may agree on a partial payment, a settlement, a repayment plan or a time-sensitive commitment. Sending a link after that conversation risks losing the momentum. Pay by Call turns the verbal agreement into a secure payment inside the same call.
In utilities, many payments are urgent: avoiding service disconnection, restoring supply or regularizing overdue bills. Customers need resolution in the moment, not a link they may open later.
In public administration, secure voice payments improve accessibility. Not every citizen can navigate a web portal, complete a mobile checkout or pass a digital authentication flow without assistance.
In insurance, trust, explanation and identity verification are central to premium collection, renewals and claim-related payments.
In travel and hospitality, high-value reservations, group bookings and urgent changes often convert better through voice than through abandoned web checkouts.
In healthcare, patients may be elderly, stressed or uncomfortable with digital payment flows. Assisted voice payments can improve collection while preserving trust.
The Pay by Call study ranks debt collection, healthcare, utilities, retail MOTO/contact center inbound, travel and hospitality, insurance, public administration, subscriptions and non-profit donations as sectors where PBC LAA/TFA + PBC 3DS can provide a strong advantage over Pay by Link.
The common factor is clear: in these verticals, payment is not just a URL. It is a moment of trust, timing and assistance.
Pay by Call does not compete with PSPs. It amplifies them.
Pay by Call SL is not a PSP and does not aim to replace the customer’s existing payment ecosystem.
The PaybyCall platform acts as a secure technology layer between the contact center, BPO, PBX or IVR and the customer’s existing PSP or acquiring bank.
The merchant can keep its current PSP.
It can keep its acquiring bank.
It can keep its payment architecture.
It can keep its existing financial flows.
Pay by Call adds the missing layer: secure voice payments, PCIaaS, DTMF masking, in-call 3D Secure authentication and recovery of payment links that did not convert.
This is why Pay by Call does not replace Pay by Link where Pay by Link works. It complements it where Pay by Link fails.
The study explicitly positions Pay by Call as a voice payment partner rather than a PSP competitor: PSPs solve digital remote payment through Pay by Link, HPP and e-commerce, while Pay by Call solves assisted, authenticated voice payments without forcing the customer out of the call.
This complementarity is also important for banks and PSPs. Pay by Call allows them to extend their payment offering into the voice channel without cannibalizing their digital Pay by Link business.
The question every contact center should ask
The key question is no longer:
“Do we have Pay by Link?”
The right question is:
How much money are we losing every month through links that our customers do not open, abandon or let expire?
And even more importantly:
How many of those payments could we recover if we had a secure PCI-compliant voice payment channel to close the transaction while the customer is still engaged?
For contact centers, BPOs, utilities, insurers, public administrations, healthcare providers, travel companies and debt collection operations, the distinction is simple.
Pay by Link is useful when the customer wants and is able to pay alone.
Pay by Call is critical when the customer needs assistance, urgency, confidence, explanation or a live path to completion.
Conclusion: the future of remote collection is hybrid, but conversion will depend on secure voice
The future of remote payments will not be purely digital. It will be hybrid.
Some customers will pay through links.
Some will pay through web portals.
Some will pay through wallets.
Some will pay through AI agents.
And many will still need a voice channel.
But voice payments can no longer remain a high-risk, unauthenticated, compliance-heavy process. They need to become secure, PCI-compliant, integrated with existing PSPs and capable of supporting strong customer authentication.
That is the role of PaybyCall.
Pay by Call SL turns the contact center into a secure, assisted, high-conversion payment channel.
Pay by Link sends a payment opportunity.
Pay by Call converts payment intent.
And when the link fails, Pay by Call can recover the transaction.