Terms of Service

Last updated: 2026-08-12. Effective from: 2026-08-12.

Operator. The Service is operated by ФОП Даценко А.В. (A.V. Datsenko, sole proprietor registered in Ukraine), РНОКПП 3339403456 ("CallPing", "we", "us", "our"). Mailing address: Plytkova str. 65/106, Kharkiv, Kharkivska oblast, 61047, Ukraine. Full contact details are in §17.

1. Acceptance of Terms

By creating an account or using any part of the CallPing service (the "Service"), you ("you", "your", "Customer") agree to be bound by these Terms of Service (the "Terms"). If you are accepting these Terms on behalf of an organization, you represent that you have the authority to bind that organization, and "you" will refer to that organization.

If you do not agree to these Terms, do not use the Service.

2. Description of Service

CallPing is a webhook-to-phone-call alerting platform. The Service receives HTTP webhook requests at user-configured endpoints, parses them according to user-configured rules, and routes outbound phone calls to user-specified phone numbers using third-party SIP trunk providers. The Service is operated as a cloud-hosted SaaS application.

The Service is currently provided free of charge and is not generally available. Self-service registration is closed; access is granted by CallPing on request during a limited pre-launch period. CallPing does not presently offer any plan, subscription, or trial for sale, no prices are published, and no payment method is collected. No fee is payable by you for the Service, and nothing in these Terms obliges you to purchase anything.

If we introduce paid plans in future, the applicable prices, billing cadence, quotas, cancellation rules, and any refund terms will be published before they take effect, and will apply only to a subscription you actively choose to purchase. See Section 7 for the Service Disclaimer and the terms governing pre-launch access, and Section 15 for the notice we provide before material changes take effect.

3. Eligibility

To use the Service, you must:

• Be at least 18 years of age, or the age of legal majority in your jurisdiction, whichever is greater.
• Have the legal capacity to enter into a binding contract.
• Not be barred from using the Service under the laws of your jurisdiction.
• Agree to and comply with our Acceptable Use Policy ("AUP"), which is incorporated into these Terms by reference.

Where you accept these Terms on behalf of a legal entity (company, organization, or partnership), the age requirement applies to the individual accepting the Terms, and you additionally represent that you have authority to bind that entity. References to "you" or "your" in these Terms then refer both to the individual and to the legal entity, as the context requires.

CallPing is not directed at children. We do not knowingly collect data from individuals under 18.

4. Account Registration and Security

You are responsible for:

• Providing accurate, current, and complete registration information.
• Maintaining the confidentiality of your account credentials.
• All activity that occurs under your account, whether or not authorized by you.
• Promptly notifying us of any unauthorized access or suspected security breach affecting your account.

We strongly recommend enabling two-factor authentication (TOTP) on your account where available.

5. License Grant

Subject to your compliance with these Terms and the AUP, CallPing grants you a limited, non-exclusive, non-transferable, non-sublicensable, revocable license to access and use the Service for your internal business or personal alerting purposes during the term of your account.

This license does not grant you any rights to:

• Resell, redistribute, sublicense, or commercially exploit the Service.
• Reverse-engineer, decompile, or disassemble any part of the Service, except to the extent such restrictions are prohibited by applicable law.
• Use the Service to build a competing product.
• Remove or alter any proprietary notices.

6. Acceptable Use

Your use of the Service is governed by the Acceptable Use Policy. The AUP forms part of these Terms. Violations of the AUP may result in suspension or termination of your account at our discretion.

7. Service Disclaimer

7a. Pre-Launch Access Terms (No Charge)

The Service is currently made available at no charge, on a limited pre-launch basis, to users to whom CallPing has granted access. By using the Service you acknowledge that:

• No fees, no subscription, no trial. No fee is payable for the Service. There is no subscription to enter into, no plan to select, no trial period, and no payment method is collected. Nothing in these Terms creates a payment obligation while the Service is provided free of charge.
• Service availability — best-effort, no contractual SLA. We operate the Service on a commercially reasonable best-effort basis. No specific uptime target is guaranteed and no service credits or compensation are payable for downtime. Where a customer holds a separate written agreement with us that provides otherwise, that agreement governs to the extent of any conflict.
• Not generally available; access may be limited. Access is granted at our discretion during the pre-launch period and may be limited, capped, or withdrawn. We may impose or adjust usage quotas (including per-day call caps) to keep the Service stable.
• Right to discontinue. We may discontinue the Service, or any individual user's access to it, on at least thirty (30) days' advance written notice (by email and in-app banner), except where immediate suspension is permitted under Section 9 (e.g., AUP violation, security risk, fraud). Because no fee is payable, no refund arises on discontinuation. Section 7b describes what happens to your data.
• Ending your own use. You may stop using the Service and close your account at any time from the account settings page. No notice period, cancellation form, or fee applies.
• If paid plans are introduced. Should we introduce paid plans, we will publish the prices and terms and give notice under Section 15 before they take effect. You will not be charged, and no subscription will begin, unless you actively choose to purchase one. Statutory consumer rights that attach to a future purchase — including any right of withdrawal available to EU/UK consumers under EU Directive 2011/83/EU and the UK Consumer Contracts Regulations 2013 — will be described in the terms published at that time and are not waived or limited by this Section.

7b. Ending Access and What Happens to Your Data

• When access ends. Access ends when you close your account, when we discontinue the Service or your access under Section 7a, or on suspension or termination under Section 9.
• Data preservation window. Unless we have terminated your account for an AUP violation, security risk, or fraud, your organization's access is suspended (see Section 7c) and your underlying data is preserved, unswept, for ninety (90) days so you can contact support to restore access or request an export. After 90 days the data is deleted in accordance with the Privacy Policy. Restoring access within the 90-day window restores your data without loss.
• Reference customer. One reference customer — the operator's own organization — operates under a separate, administratively-set arrangement documented internally. That status is granted by us and is not user-purchasable.

7c. Suspended Access

When access ends under Section 7a or 7b, your organization is marked suspended in our system (and, once the Section 7b preservation window lapses, deleted):

• While suspended: portal sign-in returns HTTP 403 ("Organization suspended"), so the portal is not viewable — your underlying data is nonetheless preserved per Section 7b, and you can reach it again by contacting support to restore access. Webhook intake to your endpoints also returns HTTP 403 ("Service suspended"), and no phone calls are placed. There is no intermediate state in which the webhook endpoint accepts the request while calls are silently suppressed — a failed response is itself the signal that no call went out.
• Once your organization's data is deleted (after the Section 7b window, or immediately on an AUP/security/fraud termination excluded from that window): webhook intake to the endpoint returns HTTP 404 ("Endpoint not found").
• Restoring access resumes call delivery on the next webhook event after the restoration is recorded.

Separately from suspension: an HTTP 202 on webhook intake means the request was accepted for routing, not that a call was placed. A call can still be suppressed afterwards by the daily quota, the per-number cooldown, or a schedule with no one on shift. Treat the absence of a delivered call, not the HTTP response code, as the authoritative delivery signal.

8. Customer Content

"Customer Content" means the data you submit to the Service, including but not limited to webhook payloads, phone numbers, alert rules, scenario definitions, and account metadata.

You retain all rights, title, and interest in your Customer Content. You grant CallPing a worldwide, non-exclusive, royalty-free license to host, store, parse, transform, and transmit your Customer Content solely as necessary to operate the Service for you — for example, to evaluate your routing rules, place outbound phone calls on your behalf, store call logs, and provide audit history.

You represent and warrant that:

• You have all necessary rights and consents to submit your Customer Content to the Service.
• You have obtained any required consent from any individual whose phone number is configured to be called by the Service.
• Your Customer Content does not violate the AUP, infringe any third-party rights, or violate any law.

8a. United States and Canada — Telecom Compliance (Customer Responsibility)

If you configure the Service to place calls to recipients in the United States, you are solely responsible for compliance with the Telephone Consumer Protection Act (TCPA), 47 U.S.C. § 227, and applicable U.S. Federal Communications Commission (FCC) regulations. This includes, without limitation, obtaining prior express consent (and, where applicable, prior express written consent) from each recipient before configuring the Service to place automated alert calls to that recipient's number, maintaining records of such consent, and honoring opt-out requests. TCPA violations carry statutory damages of USD $500 to $1,500 per call. Nothing in the Service is intended to, or operates to, satisfy the consent-collection or record-keeping obligations of the TCPA on your behalf.

Canada — CASL and CRTC compliance. If you configure the Service to place calls to phone numbers in Canada, you are solely responsible for compliance with Canada's Anti-Spam Legislation (S.C. 2010, c. 23, "CASL") for any communications that fall within its scope, and with the Canadian Radio-television and Telecommunications Commission's Unsolicited Telecommunications Rules (which govern automatic dialling, "robocalling," prerecorded messages, and curfew rules for outbound automated voice calls). CASL violations carry penalties of up to CAD $10 million per violation; CRTC Unsolicited Telecommunications Rules violations carry separate Administrative Monetary Penalty exposures. Nothing in the Service is intended to, or operates to, satisfy the consent-collection or compliance obligations imposed by CASL or the CRTC Rules on your behalf.

8b. Data Processing Addendum (B2B EU / UK / equivalent)

For customers who are businesses subject to the EU General Data Protection Regulation (Regulation (EU) 2016/679, "GDPR"), the UK GDPR, or equivalent data-protection law, and who use the Service to process personal data on behalf of their organization (including data subjects' phone numbers and any personal data appearing in webhook payloads), the CallPing Data Processing Addendum (the "DPA") applies automatically as part of these Terms upon account creation by a business customer. The DPA is published at callping.app/legal/dpa and may be downloaded as part of your records. The DPA is auto-applying — no separate signature flow is required. In the event of any conflict between these Terms and the DPA on a data-processing matter, the DPA prevails.

9. Termination

By you. You may close your account at any time from the account settings page. Upon closure, your data will be retained or deleted in accordance with our Privacy Policy.

By us. We may suspend or terminate your access to the Service:

• Immediately, if you violate the AUP or these Terms.
• Immediately, if your use of the Service creates a security or legal risk to us or to other users.
• With reasonable notice, if we discontinue the Service.

Upon termination, your license to use the Service ends. Sections of these Terms that by their nature should survive termination (including intellectual property, disclaimers, limitation of liability, indemnification, and governing law) will survive.

10. Intellectual Property

All right, title, and interest in and to the Service, including all software, design, documentation, brand assets, and trademarks, are and will remain the exclusive property of ФОП Даценко А.В. (РНОКПП 3339403456, "CallPing") and its licensors. If CallPing later transfers operation of the Service to a successor legal entity (for example, an incorporated company), the IP rights described in this Section transfer with it; we will update this Section and notify users in accordance with Section 15.

Nothing in these Terms grants you any right, title, or interest in the Service except for the limited license granted in Section 5.

11. Disclaimers and Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTIES OF ANY KIND, whether express, implied, statutory, or otherwise. To the maximum extent permitted by applicable law, CallPing disclaims all warranties, including but not limited to warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, and uninterrupted or error-free operation.

You specifically acknowledge that:

• CallPing does not guarantee that any phone call will be placed, answered, completed, or delivered. Phone-call delivery depends on third-party SIP trunk providers (currently including, but not limited to, Zadarma, Intertelecom, Twilio, and Telnyx — the active provider list may change over time as carriers are added, removed, or substituted), telephone carriers, and the recipient's own equipment. Any of these third parties may experience outages, blocking, or routing changes at any time without notice to us.
• CallPing must not be relied upon as the sole means of alerting for any safety-critical, life-critical, or regulated alerting use case. You are responsible for maintaining redundant alerting paths appropriate to the criticality of your operations.
• The Service may include integrations with or dependencies on third parties (including SIP trunks, cloud infrastructure providers, and email delivery providers). We are not responsible for the acts, omissions, or outages of third parties.

Mandatory consumer-protection rights are preserved. Nothing in this Section limits or excludes any rights you have as a consumer under mandatory consumer-protection law of your country of residence, including without limitation the Law of Ukraine "On Consumer Protection" for Ukrainian consumers, the UK Consumer Rights Act 2015 for UK consumers, and equivalent EU member-state consumer-protection rules implementing EU Directives 2011/83/EU and 2019/770/EU for EU consumers. Where a warranty disclaimer in this Section is broader than applicable mandatory law allows, the disclaimer is read down to the maximum scope permitted by that mandatory law and the rest remains in force.

12. Limitation of Liability

To the maximum extent permitted by applicable law:

• In no event will CallPing be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, including but not limited to lost profits, lost revenue, lost data, loss of goodwill, or business interruption, regardless of the legal theory and regardless of whether we have been advised of the possibility of such damages.
• Aggregate liability cap. CallPing's aggregate liability arising out of or related to these Terms or the Service will not exceed the greater of (a) the amount, if any, actually paid by you in respect of the Service in the twelve (12) months preceding the event giving rise to the claim, or (b) USD $100, except where applicable law requires a higher minimum. The Service is currently provided free of charge, so limb (a) is ordinarily zero and the USD $100 floor applies.

Mandatory rights. Nothing in this section limits or excludes any liability that cannot be limited or excluded under applicable law, including (a) liability for death or personal injury caused by negligence; (b) liability for fraud or fraudulent misrepresentation; (c) liability for gross negligence or willful misconduct; (d) any statutory rights that consumers cannot waive under the laws of their country of residence. If you are a consumer resident in the European Union, the United Kingdom, or another jurisdiction with mandatory consumer-protection laws, those laws may give you rights that override the limitations above.

13. Indemnification

By you. You agree to indemnify, defend, and hold harmless CallPing and its officers, employees, and agents from and against any claims, liabilities, damages, losses, costs, and expenses (including reasonable attorneys' fees) arising out of or related to:

• Your Customer Content.
• Your use of the Service in violation of these Terms or the AUP.
• Your violation of any law or third-party right.
• Any phone call placed by the Service to a recipient who has not consented to receive automated alerts at that number.

By us (intellectual-property infringement). CallPing will defend and indemnify you against third-party claims that the Service, as provided by CallPing and used by you in accordance with these Terms, infringes that third party's intellectual-property rights. This indemnification does not apply to the extent the claim arises from (a) your Customer Content, (b) your use of the Service outside the scope of these Terms, (c) modifications to the Service made by you or a third party at your direction, or (d) combinations of the Service with non-CallPing software, hardware, or data not authorized by us in writing. Our liability under this paragraph is subject to the limits in Section 12.

14. Governing Law and Dispute Resolution

Governing law. These Terms and any dispute or claim (including non-contractual disputes or claims) arising out of or in connection with them or their subject matter or formation are governed by the laws of Ukraine.

Mandatory consumer-protection carve-out. Where you are a consumer (a natural person acting outside the scope of business activity) resident in a jurisdiction whose law provides mandatory consumer-protection rights that cannot be excluded by contract, the mandatory consumer-protection laws of your country of residence apply to that extent and are not excluded by the choice of Ukrainian law in this Section. This includes, without limitation:

• The Law of Ukraine "On Consumer Protection" for Ukrainian consumers.
• The EU Rome I Regulation (Regulation (EC) No 593/2008) Article 6 mandatory protections for EU consumers.
• The UK Consumer Contracts Regulations 2013 and UK Consumer Rights Act 2015 for UK consumers.

Litigation forum. B2B disputes: the courts of Ukraine have exclusive jurisdiction over disputes between CallPing and a Customer who is a business (legal entity or natural person acting in the course of a trade or business), except as required by mandatory law or by the arbitration sub-clause below. Consumer disputes — EU/UK: Notwithstanding the choice of Ukrainian law in this Section, EU and UK consumers retain the right to bring proceedings in the courts of their country of habitual residence in accordance with Article 17–19 of Regulation (EU) No 1215/2012 ("Brussels Ibis") and equivalent UK rules. CallPing will not invoke the Ukrainian-courts clause to deprive an EU/UK consumer of that right.

Dispute resolution. Before initiating formal proceedings, the parties agree to attempt in good faith to resolve any dispute by written negotiation, with each side designating a representative authorized to settle. If the dispute is not resolved within thirty (30) days of the first written notice, either party may pursue any remedy available under the governing law in this Section. Nothing in this paragraph prevents either party from seeking urgent injunctive relief or any consumer from accessing a competent regulator or court in their country of residence.

B2B commercial disputes — international arbitration option. For disputes between CallPing and a business Customer that are not resolved by the negotiation process above within sixty (60) days of first written notice, either party may refer the dispute to arbitration administered by the International Chamber of Commerce (ICC) under the ICC Rules of Arbitration. The seat of arbitration shall be Kyiv, Ukraine, and proceedings shall be conducted in English. The arbitral tribunal shall consist of one arbitrator. This sub-clause does not apply to consumer disputes, which remain governed by the consumer-protection carve-out and the EU/UK litigation-forum provisions above.

EU Online Dispute Resolution. If you are a consumer resident in the European Union, you may use the European Commission's Online Dispute Resolution (ODR) platform to resolve disputes: https://ec.europa.eu/consumers/odr. Our contact email for ODR purposes is: [email protected].

15. Changes to These Terms

We may update these Terms from time to time. When we do, we will:

• Update the "Last updated" date at the top of this document.
• Notify active users by email and via an in-app notice for material changes.
• Provide at least thirty (30) days' notice before material changes take effect, where reasonably practicable.

For purposes of this Section, material changes include, without limitation:

• Changes to pricing, billing terms, plan structure, or quota limits.
• Changes to data processing practices that meaningfully affect the rights of users or data subjects.
• Changes to the limitation of liability (Section 12), indemnification (Section 13), or warranty disclaimers (Section 11).
• Changes to the governing law or dispute-resolution mechanism (Section 14).
• Changes to the Acceptable Use Policy that introduce new prohibited categories of use.

Non-material changes (e.g., editorial corrections, clarifying examples, internal-process language) may be made without 30-day advance notice; the "Last updated" date will still be revised.

Your continued use of the Service after changes take effect constitutes acceptance of the revised Terms. If you do not agree to the changes, you must stop using the Service and may close your account.

EU/UK consumer right to terminate on material change. Where you are a consumer in the European Union or the United Kingdom and a change to these Terms materially affects your rights, you may terminate your account without penalty within thirty (30) days of the change taking effect under Articles 19 and 23 of EU Directive 2019/770/EU on digital services and the corresponding UK Consumer Rights Act 2015 provisions. The Service is presently provided free of charge, so no fees arise on such a termination; where you have paid us for a period that has not yet elapsed, that period is refunded pro rata. Email [email protected] with the subject line "EU/UK material-change termination" to exercise this right.

16. Miscellaneous

Entire agreement. These Terms, together with the AUP, Privacy Policy, and any other policies referenced herein, constitute the entire agreement between you and CallPing regarding the Service.

Severability. If any provision of these Terms is held to be unenforceable, the remaining provisions will remain in full force.

No waiver. Our failure to enforce any right or provision will not constitute a waiver of that right or provision.

Assignment. You may not assign these Terms without our prior written consent.

Assignment by CallPing. We may assign these Terms in connection with a merger, acquisition, or sale of all or substantially all of our assets. For consumer Customers (natural persons acting outside trade or business): we will give at least thirty (30) days' advance written notice of any assignment by email and in-app notice. During that 30-day period you may terminate your account without penalty if you do not wish to continue with the assignee. No fees are currently payable for the Service; where you have paid us for a period that has not yet elapsed, that period is refunded pro rata. This notice-and-exit right reflects EU Directive 93/13/EEC Annex 1(p) and UK Consumer Rights Act 2015 Schedule 2 protections against unfair unilateral assignment.

Force majeure. CallPing is not liable for any failure or delay in performance caused by circumstances beyond its reasonable control, including but not limited to acts of God, war, civil unrest, cyberattacks, telecommunications and power-network failures, actions or outages of third-party SIP trunk providers and cloud infrastructure providers (including those identified in Section 11), regulatory actions, denial-of-service events, and other force majeure events as recognized under Ukrainian law. Where a force majeure event prevents us from performing for a sustained period, we will provide reasonable notice and either party may terminate the affected access on written notice; the data-handling consequences follow Section 7b. No fees are currently payable for the Service; where you have paid us for a period that has not yet elapsed, that period is refunded pro rata. This Section does not relieve you of any payment obligation for periods during which the Service was actually delivered.

Governing language. These Terms are written in English. We may publish translated versions for convenience. In the event of any conflict or inconsistency between the English version and any translated version, the English version controls.

17. Contact

The Service is operated by:

• Legal entity: ФОП Даценко А.В. (A.V. Datsenko, sole proprietor registered in Ukraine)
• Taxpayer identifier: РНОКПП 3339403456
• Country of registration: Ukraine
• Mailing address: Plytkova str. 65/106, Kharkiv, Kharkivska oblast, 61047, Ukraine
• Tax status (Ukrainian ФОП Group 3). ФОП Даценко А.В. operates under Ukrainian simplified taxation Group 3 at 5% on gross revenue per Articles 291–293 of the Tax Code of Ukraine, applied to the UAH-equivalent of net revenue received, converted at the National Bank of Ukraine official rate on the date of receipt under Article 292.5 of the Tax Code. No revenue is currently received, because nothing is for sale (§2). ФОП Даценко А.В. is not VAT-registered; if paid plans are introduced, VAT, where applicable to a customer purchase, would be collected and remitted by a payment processor engaged as merchant of record.
• Email: [email protected] for general questions about these Terms; [email protected] for data-protection matters; [email protected] for security reports.