Legal matters
Terms of use for SIPONA
Status: May 2026
1. validity of these terms of use
These Terms of Use govern the use of SIPONA by customers, administrators and users. They supplement the General Terms and Conditions and apply to all user accounts that are set up as part of a SIPONA contract.
The customer is responsible for ensuring that its users observe these terms of use and only access SIPONA to the extent agreed.
2. user accounts and access data
User accounts are personal and may not be shared, transferred or passed on to third parties without our consent.
Access data must be treated confidentially. Passwords must be chosen securely and protected against unauthorised access. The customer must inform us immediately if there is any suspicion that access data has been compromised.
Administrators are responsible for managing users, roles and settings. Authorisations must be assigned in such a way that users only receive the access they need for their tasks.
3. authorised use
SIPONA may only be used for legitimate business, organisational or private communication and collaboration. The use must comply with the applicable laws, official requirements and third-party rights.
The customer may only use SIPONA within the scope of the licences, packages and options booked. Circumvention of technical limitations, unauthorised multiple use of licences or use outside the agreed purpose is not permitted.
4. prohibited use
In particular, any use that violates laws, official regulations, third-party rights or these terms of use is not permitted.
- the sending of spam, unauthorised advertising, harassing messages or unlawful mass messages;
- the transmission, storage or dissemination of criminal, offensive, discriminatory, youth-endangering or illegal content;
- Attacks on systems, security mechanisms, networks or other users, including phishing, malware, port scans, load attacks or circumvention of access restrictions;
- use for fraudulent, misleading or abusive communication, in particular under a false identity;
- the infringement of copyrights, trademark rights, trade secrets, personal rights or data protection rights of third parties.
5. telephony, phone numbers and emergency calls
Telephony and telephone number functions may only be used in compliance with the applicable telecommunications regulations. The customer is obliged to provide correct information on location, address, local network reference and user authorisation.
Telephone numbers may not be misused, manipulated or used for unauthorised advertising calls, harassing calls, fraud or other illegal purposes.
The customer must update the data immediately or inform us in the event of changes to the location or the information relevant to telephone numbers. This is particularly important if telephone numbers are assigned to a local network.
Insofar as emergency call functions are legally or technically affected, the customer must ensure that users are informed of any restrictions and that location data is correctly maintained. SIPONA does not replace separate security or emergency communication concepts.
6. content and customer data
The customer remains responsible for content that they or their users post, transfer, share or save in SIPONA. This includes, in particular, messages, files, contacts, projects, tasks, documents, CRM data and telephony information.
The customer must ensure that they are authorised to process and pass on this content and that the necessary consents, information obligations or agreements are in place.
We do not adopt customer content as our own. However, we may check, block or remove content if this is necessary for the fulfilment of the contract, security, defence against misuse, compliance with legal obligations or enforcement of these terms of use.
7 Safety and obligations to co-operate
The customer must take appropriate organisational and technical measures to protect its users, end devices, browsers, email inboxes and access data.
Security incidents, malfunctions, suspected misuse or unauthorised access must be reported to us immediately. The customer shall support us to a reasonable extent in clarifying and limiting such incidents.
The customer is responsible for the lawful setup of its users, roles, integrations, contact and communication data and for observing internal compliance requirements.
8 Availability, maintenance and modifications
We operate SIPONA with reasonable care and continue to develop the platform. A certain availability or a certain service level is only owed if this has been expressly agreed, in particular in the case of individually agreed enterprise services.
Maintenance, security updates, disruptions on the Internet, force majeure, attacks by third parties or necessary measures to prevent misuse may temporarily restrict use.
9. blocking and restriction of use
We may temporarily block or restrict access, user accounts, functions, telephone numbers or content if there are concrete indications of legal offences, misuse, security risks, threats to platform operation, threats to third parties or significant breaches of contract.
As far as possible and reasonable, we will inform the customer in advance or immediately after the measure about the reason for and scope of the blocking. Advance information may be omitted if this would jeopardise security measures, investigations, legal obligations or the legitimate interests of third parties.
The customer must immediately remedy the cause of the blocking. Once the reason for blocking has ceased to exist, use shall be made possible again, provided there is no cancellation or legal obligation to the contrary.
10. support and tickets
Support enquiries, technical reports and requests for early number provisioning should be submitted via the contact channels provided or via a ticket in SIPONA.
The customer should describe support requests in such a way that processing is possible, in particular with the affected users, time, error message, browser, booked package and test steps already carried out.
11 Relationship to GTC and data protection
For the contract, payment, term, cancellation, revocation and liability, our General Terms and Conditions.
Information on the processing of personal data can be found in our Privacy policy.