> For the complete documentation index, see [llms.txt](https://help.sipgate.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sipgate.com/documentation/en/privacy-terms-and-conditions-and-dpa/sipgate-agbs.md). # sipgate terms and conditions ## General Terms and Conditions for the use of sipgate sipgate GmbH, Gladbacher Str. 74, 40219 Düsseldorf, registered with the Local Court of Düsseldorf under HRB 39841, offers various telecommunications services on the basis of the prerequisites for use – internet access, the service descriptions of sipgate applicable to the selected product, and these General Terms and Conditions for the use of sipgate (hereinafter: sipgate GTC). In addition to the following provisions, the subject matter of the sipgate GTC is the prerequisites for use – internet access – as well as the product-specific service description sipgate. Customers have the opportunity to familiarize themselves with this information via the respective valid link. The sipgate GTC for the use of sipgate apply between sipgate and the customer to all future agreements (product contracts) that the customer concludes in connection with a sipgate account. Product contracts are defined in the sipgate service description. When concluding a product contract, sipgate expressly points out to the customer that the sipgate GTC apply. 1\. Conclusion and termination of contract 1.1. Conclusion of contract 1.2. Ordinary termination 1.3. Extraordinary termination 1.4. sipgate credit upon termination of contract 1.5. Inactive accounts 2\. Customer's duties to cooperate 3\. Connection charges 4\. Billing and payment 4.1. Billing methods 4.2. Payment methods 4.3. Form of invoice 4.4. Due date and default 4.5. Objections 5\. Data protection 6\. Liability 7\. Liability when customers use AI applications 8\. Changes to charges, the General Terms and Conditions (GTC) and the service description 9\. Maintenance and fault clearance service 10\. Final provisions 11\. Customer information pursuant to the Telecommunications Act (TKG) 11.1. Emergency call (landline) 11.2. Emergency call (mobile network) 11.3. Conciliation procedure 11.4. Inclusion in public subscriber directories 11.5. Security or integrity of telephony and data processing systems 11.6. Blocking certain number ranges 11.7. Caller ID suppression 11.8. Blocking number ranges/services provided in addition to the connection ### 1. Conclusion and termination of contract #### 1.1. Conclusion of contract 1.1.1. The contract for the use of sipgate services is concluded when sipgate accepts the customer's order for the provision of the services. Acceptance is deemed to have been declared by sipgate ten calendar days after receipt of the customer's order, provided that the sipgate connection and the sipgate account have been activated and enabled by then. The customer is bound to their application for 5 working days. 1.1.2. The details regarding the contract term are governed primarily by the sipgate service description. Unless otherwise stated there, the contract has no minimum term. #### 1.2. Ordinary termination 1.2.1. The details regarding the notice period are governed primarily by the sipgate service description. Unless otherwise stated there, the contract may be terminated by either party with one calendar day's notice effective at the end of the month. 1.2.2. Terminations must be made by email or in writing (letter or fax). #### 1.3. Extraordinary termination 1.3.1. sipgate reserves the right to extraordinary termination for good cause. Good cause exists in particular if the customer culpably breaches their obligations under the contractual relationship and sipgate cannot reasonably be expected to wait until the end of the notice period. Such a case exists, among others, if the customer: * creates a sipgate account under a false name or false identity and/or * uses the sipgate account, the connection or the assigned telephone number abusively and/or * insolvency proceedings are opened against the customer's assets or the customer files an application to open insolvency proceedings and/or * debit reversals occur after direct debits. 1.3.2. In addition, sipgate has an extraordinary right of termination in the event of changes to the legal basis of this contract, orders and/or directives relating to the contract by authorities, courts or other holders of public authority, provided that this makes it unreasonable for sipgate to continue the contract. 1.3.3. The customer's statutory right to extraordinary termination for good cause remains unaffected. #### 1.4. sipgate credit upon termination of contract 1.4.1. If, at the time the termination becomes effective, the customer has a credit balance on their sipgate account, sipgate undertakes to refund this to the customer upon corresponding request. The customer can make the request via their sipgate account. The refund by sipgate is made by means of a credit to the specified bank or credit card account of the customer. 1.4.2. Any other refund of sipgate credit is excluded. #### 1.5. Inactive accounts If the customer has a sipgate account that they have not used for more than one year (inactive account), sipgate is entitled to delete the sipgate account. sipgate will first inform the customer of the intended deletion via the email address stored in the sipgate account. If the customer does not object within 4 weeks, sipgate will delete the customer's sipgate account. ### 2. Customer's duties to cooperate 2.1. It is the customer's responsibility to maintain internet access suitable for use with sipgate (see prerequisites for use – internet access). If this is not the case, the mutual obligations to perform under the contractual relationship remain unaffected. 2.2. The customer must take all necessary and customary security measures against unintended and abusive use of their sipgate connection by third parties. If the customer detects unintended or abusive use, they must inform sipgate immediately. 2.3. sipgate handles essential communication processes (including those relevant to the contract) via email. The customer undertakes to provide their own valid email address when registering with sipgate, to check it regularly, and to inform sipgate immediately of any changes to their email address. 2.4. If any changes arise that affect the flow of communication or the contractual relationship between the customer and sipgate, sipgate must be informed immediately. This duty to report applies in particular to the following points: * Change of the customer's place of residence/registered office (among other things necessary for the correct localization of emergency calls). Further information at: [Notes on placing emergency calls](http://www.sipgate.de/team/nutzungsbedingungen#emergency_call) * Change of the customer's email address * for payments by the Autoprepay method, bank details and credit card information. 2.5. The customer may use the connections to sipgate only as intended and in accordance with the (telecommunications) laws and regulations in their currently valid version. The customer is obliged not to misuse the telecommunications services offered by sipgate for purposes that contradict the legal provisions, the relevant [sipgate service description](https://www.sipgate.de/leistungsbeschreibung) or the sipgate GTC. 2.6. The customer undertakes not to use any equipment or run any applications that could lead to changes in the physical or logical structure of the network made available by sipgate. 2.7. The customer undertakes to keep access data for their sipgate account and user accounts as well as access data for sipgate's VoIP service (user password or SIP ID and SIP password) confidential and secure, and not to disclose them to third parties. If the customer has legitimately disclosed access data to third parties (e.g. their employees), they must inform them of the obligation to keep the access data confidential and secure and obligate them accordingly. Private customers on plans with multiple users (upgrade to business S, L, XL) may only pass on the services covered by the contract to persons in their own household. 2.8. The customer agrees that their telephone number may, if necessary, be transferred to a network operator other than the one used at the time the contract was concluded. This incurs no costs and no disadvantages for the customer; the contract between sipgate and the customer remains unaffected. 2.9. sipgate is entitled to change the customer's telephone numbers, * if the customer agrees to the change, * if this is required due to legal provisions or official measures (in particular the Telecommunications Numbering Ordinance or decisions of the Federal Network Agency), * or if corresponding economic or legal constraints exist which sipgate cannot resolve in any other reasonable way. 2.10. The customer is not permitted to pass on sipgate services provided to them to third parties in a commercial manner without sipgate's consent. 2.11. If the customer or an authorized user acts abusively (e.g. breaches of 2.5., 2.6., 2.10. or comparable breaches) and the customer does not stop the abuse within a reasonable period after being requested to do so by sipgate, sipgate is entitled to block their sipgate connection or – where applicable – delete user accounts created by the customer. If the customer is responsible for the blocking or deletion, sipgate will charge the customer for the costs of the blocking/deletion. The customer is obliged to pay the basic fees incurred during a blocking period if they are responsible for the blocking. ### 3. Connection charges 3.1. The customer is obliged to pay for any use of their connection for which they are responsible. 3.2. The customer is also obliged to pay the charges incurred by the user or co-user. This also applies in the event of abusive use, unless the customer proves that they are not at fault for a breach of duty. 3.3. The obligation to pay shall not apply if facts justify the assumption that third parties have influenced the charged connection fee through unauthorized changes to public telecommunications networks. 3.4. The charges for the VoIP service are based on the price list valid at the start of each individual connection for the product selected by the customer according to the sipgate service description. The current price list can be viewed online at any time via the applicable link. ### 4. Billing and payment #### 4.1. Billing methods sipgate distinguishes between three different billing methods: Prepay, Autoprepay and Postpay. 4.1.1. Prepay method: In this method, the customer first pays a sum determined by them to sipgate (sipgate credit) and may only use chargeable sipgate products according to their sipgate credit after payment has been received. Possible payment methods are bank transfer, direct debit and credit card. Unused sipgate credit does not expire. 4.1.2. Autoprepay method: Autoprepay is identical to the Prepay method, except that the customer's sipgate credit is automatically topped up when it falls below a minimum amount set by the customer. Possible payment methods for Autoprepay are direct debit and credit card. Unused sipgate credit does not expire. 4.1.3. Postpay method: sipgate reserves the right to offer the customer payment only after services have been provided by sipgate against an appropriate invoice. 4.1.4. If the service description for the contract booked by the customer provides for the Autoprepay method as the billing method, the customer must ensure that their current bank or credit card details are stored in their sipgate account. If this is not the case, or if the customer revokes the direct debit authorization or the authorization to charge the credit card, a negative balance (a claim by sipgate against the customer) may arise as a result of calls or monthly fees. In this case, sipgate is entitled to request by email that the customer settle their negative balance. #### 4.2. Payment methods 4.2.1. In addition to bank transfers, sipgate also offers direct debit and credit card payments, provided the customer gives their consent. Participation in the Autoprepay method is only possible, however, if the customer consents to recurring direct debit or credit card payments. The customer must declare this consent when activating the Autoprepay billing method in their account or in writing or by email to sipgate. If charging the selected payment method is unsuccessful, sipgate is entitled to use alternative payment methods stored in the account. 4.2.2. The pre-notification period for SEPA direct debits is one day. 4.2.3. For returned direct debits or collections, the customer must reimburse the costs incurred, insofar as they are responsible for them. sipgate will charge the customer for the costs incurred in connection with the rejection (third-party charges of the customer's bank as well as charges of sipgate's bank) and deduct them from the account balance, unless the customer proves that no damage at all or damage of significantly lower amount was incurred. 4.2.4. If, in exceptional cases, the customer pays in another way, for example due to late payment caused by a returned direct debit or insufficient funds, discharge of the debt only occurs if the customer has sufficiently stated the intended purpose of the payment (in particular the invoice number or a comparable, clear booking code from sipgate) when making the payment. This applies accordingly to payments by third parties. 4.2.5. sipgate reserves the right to offer the customer additional payment methods (e.g. Paypal) alongside direct debit or credit card payments. #### 4.3. Form of invoice 4.3.1. sipgate issues invoices exclusively as PDF files by email or for download. It is not possible to issue an invoice in paper form. 4.3.2. The customer agrees to have their invoice sent by email and is informed that confidential data transmission over the internet cannot be guaranteed. For this reason, sipgate invoices do not include individual call records. These can be retrieved separately by the customer. 4.3.3. The mandatory information in the invoice (Section 14 (4) of the German VAT Act) is included in the invoice on the basis of the information provided by the customer in their sipgate account. The customer is obliged to keep this information up to date. sipgate is not obliged to issue invoices that differ from this information. #### 4.4. Due date and default 4.4.1. Claims for ongoing contracts that arise at monthly intervals (or at other regular intervals) become due on the 1st day of each month (or period), unless otherwise regulated in the service description. To the extent that claims do not arise at regular intervals, they become due when the invoice is received by the customer. 4.4.2. The statutory provisions apply to default. 4.4.3. If the customer is in default, sipgate is entitled to block the service in accordance with Section 61 (3) et seq. of the TKG. 4.4.4. If the customer is a consumer (within the meaning of Section 13 BGB) and is in default, interest will be charged at five percentage points above the respective base interest rate of the European Central Bank. If the customer is an entrepreneur (within the meaning of Section 14 BGB), eight percentage points above the base rate will be charged. sipgate reserves the right to assert further claims due to default in payment (e.g. reminder fees). 4.4.5. Eight weeks after receipt of the invoice, sipgate is entitled to delete the connection data underlying the invoice, which means that subsequent objections can no longer be taken into account. This also applies if the customer requests early deletion of the connection data from sipgate. A complete review of the invoice is therefore only possible as long as the customer's connection data is stored in full. 4.4.6. The customer may only offset claims against sipgate GmbH with claims that have been legally established or are undisputed. #### 4.5. Objections 4.5.1. The customer must carefully check the invoices issued by sipgate. The customer must raise objections to the amount of the invoice in writing no later than eight weeks after receipt of the invoice. If the customer has credit with sipgate against which sipgate offsets basic fees and telephone charges, objections to the offsetting must, deviating from sentence 1, be raised no later than eight weeks after the end of the month in which the fees were incurred. The amount of the offsetting can be found in the itemized call record. The due date of the invoice amount is not affected by the raising of objections. 4.5.2. Objections to the invoice or to the offsetting against credit are excluded if the corresponding traffic data have already been deleted within the statutory periods (eight weeks) or at the customer's express request before the objections were raised. 4.5.3. If objections are not raised within the period of eight weeks under item 4.5.1., the invoice/offsetting against credit is deemed approved by the customer. sipgate points out this legal consequence in the invoices. 4.5.4. In the event of justified objections raised in good time, any overpayment will first be offset against outstanding payment claims of sipgate. If there are no outstanding payment claims, a credit note will be issued. ### 5. Data protection 5.1. The legal basis for handling the customer's personal data includes, among others, the General Data Protection Regulation (GDPR), the Federal Data Protection Act (BDSG), the Telecommunications Act (TKG) and the Telecommunications and Telemedia Data Protection Act (TTDSG). Personal data will only be collected, processed or used if the data subject has consented or if the TTDSG or another legal provision orders or permits this. 5.2. Data processing is therefore particularly permissible insofar as this is necessary. It is necessary for the establishment and design of the contractual relationship (master data), for the provision of telecommunications services (connection data), and for their billing (billing data). 5.3. sipgate observes telecommunications secrecy in accordance with legal requirements. 5.4. Detailed information on how sipgate handles personal data can be found in our [privacy policy](http://www.sipgate.de/team/datenschutz), which is also part of the sipgate GTC. 5.5. The customer commissions sipgate to maintain a monthly itemized call record, which they can access via the administrator account. This record lists all chargeable connections individually, including, among other things, the date, destination number, start and duration of the connection, and the charge for each individual connection. The telephone numbers of the connections are shown either shortened by the last three digits or in full length, depending on the customer's choice. The customer can also completely deactivate the itemized call record in their administrator account. If the customer does not exercise their right of choice, the entries are shown without abbreviation. The customer undertakes to inform all current and future co-users of their sipgate account, or in the case of business use all current and future employees, immediately and to comply with the co-determination rules. 5.6. The customer commissions sipgate to store general data (time, duration) of telephone calls, faxes and SMS messages sent to or from sipgate, independently of the itemized call record, for the call list / event list and to make it available to the respective user on their user interface. 5.7. sipgate deletes customer data if the customer places a corresponding order, but only insofar as this is permitted by the TKG or other legal provisions. If objections have been raised, sipgate is entitled to retain the traffic data until the objections have been finally clarified. ### 6. Liability 6.1. For financial losses, sipgate is liable up to a maximum amount of €12,500.00 per customer. Towards all customers collectively, liability is limited to €30 million per single act or per single harmful event. If the amounts payable to several customers due to the same event exceed the maximum limit, compensation shall be reduced in the ratio in which the total of all compensation claims bears to the maximum limit. The limitation of liability does not apply if the damage was caused intentionally. 6.2. Liability for consequential costs resulting from emergency calls outside the stated place of residence or business is excluded. 6.3. In all other respects, sipgate is only liable for gross negligence or intent, unless there is a breach of a material contractual obligation (so-called cardinal obligation). In the event of a slightly negligent breach of a cardinal obligation, liability is limited to such typical contractual damages as were reasonably foreseeable at the time the contract was concluded. 6.4. sipgate's liability for warranted characteristics as well as under the provisions of the Product Liability Act and for personal injury (life, body, health) remains unaffected by the above provisions. 6.5. To the extent that sipgate's liability is effectively excluded or limited, this also applies to the personal liability of sipgate's employees, other staff, corporate bodies, representatives and vicarious agents. 6.6. sipgate's obligation to perform exists only if sipgate itself has been supplied with the necessary advance services in accordance with the contract and on time and has not breached any related duty of care. In the event of service disruptions caused by force majeure, sipgate is in any case released from the obligation to perform. ### 7. Liability when customers use AI applications 7.1. sipgate provides AI applications that customers can use for automated communication with their end customers (e.g. initial telephone contact by AI agents). The systems comply with the requirements of the EU AI Act and are regularly checked for functionality and legal compliance. AI systems are highly complex systems that are subject to constant further development. Incorrect, undesired or misleading results therefore cannot be ruled out - even if the AI system acts within its specific parameters. 7.2. sipgate is not liable for damage caused by the use of the AI applications in the relationship between the customer and their end customers, provided that sipgate has properly provided and documented the systems. In particular, sipgate assumes no liability for incorrect information, misunderstandings or omitted notices arising from the AI in customer contact. 7.3. The customer is obliged to test the AI applications for suitability for the respective use case before productive use and to ensure that the statutory information, transparency and documentation obligations towards their end customers are fulfilled. 7.4. sipgate is liable only in cases of intentional or grossly negligent conduct and in the event of a breach of essential contractual obligations. Any further liability, in particular for indirect damage or loss of profit, is excluded. 7.5. The customer shall indemnify sipgate against all claims by third parties asserted in connection with the use of the AI applications towards end customers, provided that these are not based on a breach by sipgate of statutory or contractual obligations. ### 8. Changes to charges, the General Terms and Conditions (GTC) and the service description 8.1. sipgate charges the customer the fees applicable at the time the contract was concluded and is generally bound by them. The agreed fees may only be increased by sipgate for the future in the following cases: * in the event of changes to the VAT rate, sipgate is entitled to adjust the charges accordingly to reflect the change, * if the Federal Network Agency or another authority mandatorily requires a price increase, sipgate may change the charges in accordance with the requirements and, * if third parties from whom sipgate obtains advance services necessary for the provision of the services owed under this contract increase their prices, sipgate may pass on this price increase to the customer. A prerequisite for an increase in charges by sipgate is that sipgate informs the customer of the change in charges by email at least six weeks before it takes effect and explains the reason for the increase. 8.2. If the customer is a consumer (within the meaning of Section 13 BGB), the customer has an extraordinary right of termination in the event of an increase in net charges, which takes effect at the time of the relevant change in charges. If the customer does not exercise this right of termination within four weeks of receipt of notice of the increase in charges, the change is deemed approved. sipgate expressly points this out again in the notice of the increase in charges. In the event of changes to VAT, sipgate is entitled to adjust the charges accordingly to reflect the change, without this giving rise to any right of termination for the customer. 8.3. If the customer is an entrepreneur (within the meaning of Section 14 BGB), sipgate is entitled, irrespective of item 8.1., at its reasonable discretion and taking into account general market developments (in particular also internal advance service prices), to adjust the charges at any time with effect for the future. This applies in particular insofar as sipgate's purchase prices change. 8.4. sipgate is entitled to amend these GTC insofar as this does not affect essential provisions of the contractual relationship and this is necessary to adapt to developments that were not foreseeable at the time the contract was concluded and whose failure to take account of them would noticeably disrupt the balance of the contractual relationship. Essential provisions are in particular those concerning the type and scope of the contractually agreed services and the term, including termination provisions. Furthermore, adjustments or additions to the GTC may be made insofar as this is necessary to eliminate difficulties in the performance of the contract due to gaps in the rules that arose after the contract was concluded. This may in particular be the case if case law changes and one or more clauses of these GTC are affected. If the change results in a disadvantage to the customer, a change is only permitted on the condition that sipgate notifies the customer by email no later than six calendar weeks before it takes effect. 8.5. The service description may be changed if this is necessary for an important reason, the customer is not placed at a disadvantage compared with the service description included at the time the contract was concluded (e.g. maintenance or improvement of functionalities), and the change does not deviate significantly from it. An important reason exists if there are technical innovations on the market for the services owed or if third parties from whom sipgate obtains advance services necessary for the provision of its services change their service offering. If the change results in a disadvantage to the customer, a change is only permitted on the condition that sipgate notifies the customer by email no later than six calendar weeks before it takes effect. 8.6. Planned changes to the GTC and the service description under items 8.5 and 8.6 are communicated to the customer by email at least six weeks before they take effect. If the change to the GTC or the service description proves disadvantageous to the customer, the customer has an extraordinary right of termination at the time the changes take effect. If the customer does not terminate in writing or by email within four weeks of receipt of the notice of change, the changes become part of the contract at the time they take effect. The customer is expressly informed of this consequence in the notice of change. ### 9. Maintenance and fault clearance service sipgate offers its customers the opportunity at any time to access frequently asked questions and their answers as well as various configuration instructions via its help center, to contact customer support in writing or by telephone via the contact form, and, for example, to report faults. ### 10. Final provisions 10.1. Deviating General Terms and Conditions of the customer shall also not apply even if sipgate does not expressly object to them. 10.2. Free additional services provided by sipgate do not form part of the contract. sipgate may change and/or discontinue these services at its own discretion. This is subject to any other agreements with the customer. 10.3. The customer may only transfer the rights and obligations under this contract to a third party with sipgate's prior written consent. 10.4. Use of products and services of sipgate GmbH in the territory of or by citizens of the United States of America (USA) is excluded. 10.5. Use of sipgate is excluded in those countries where use of the sipgate service is not permitted. 10.6. The law of the Federal Republic of Germany applies exclusively between the customer and sipgate, as it applies between domestic parties excluding the UN Convention on Contracts for the International Sale of Goods, unless mandatory law requires the application of another legal system. 10.7. The place of jurisdiction is Düsseldorf, insofar as the customer is a merchant. 10.8. sipgate is entitled to transfer the customer's master data to third parties insofar as this is necessary for the purpose of assigning or collecting claims. Statutorily permitted transmission of further customer data for the purpose of debt collection remains unaffected. 10.9. sipgate is entitled to have the services performed by third parties as subcontractors. 10.10. Locations created in the sipgate account are verified using a suitable procedure. ### 11. Customer information pursuant to the Telecommunications Act (TKG) #### 11.1. Emergency call (landline) Emergency numbers 110 and 112 can be reached via sipgate. These are activated for your stored address. The customer must check at regular intervals whether the personal or business details are correct and, if necessary, change them. Only if the name and address are correct at the time an emergency call is placed can proper emergency call functionality, in particular reaching the nearest fire brigade or police station, be guaranteed. If you use sipgate from a location other than the stored address (nomadic use), emergency call service may not be available at all or only if you can tell the emergency center your location and your name. So-called "gasping calls" are not possible. #### 11.2. Emergency call (mobile network) In Germany, an emergency call to the Europe-wide emergency number 112 and to the national emergency number 110 valid in Germany can only be made with an inserted and valid SIM card. Different rules may apply outside Germany. In the event of an emergency call to 112 and 110, information on the caller's location may also be transmitted to the responsible emergency call answering point. In addition to the general emergency numbers 110 and 112, customers in the coastal area of the North Sea and Baltic Sea can dial the SAR alarm call (sea rescue emergency call) on 124 124. The SAR alarm call does not replace the usual marine radio services. #### 11.3. Conciliation procedure In disputes with sipgate, customers may initiate a conciliation procedure with the Federal Network Agency by filing an application pursuant to Section 68 TKG. The Federal Network Agency regulates the details of the conciliation procedure in a conciliation order which it publishes. EU Commission platform for online dispute resolution: [www.ec.europa.eu/consumers/odr](https://webgate.ec.europa.eu/odr/main/index.cfm?event=main.home.show\&lng=DE\&DeviceId=b06aff2e-fdc0-4bd9-9e23-ecaea52e6388\&SessionId=1767690360698) #### 11.4. Inclusion in public subscriber directories The customer may at any time request to be entered free of charge in a publicly accessible subscriber directory with their telephone number, surname, first name and address, or to have their entry deleted or amended again. #### 11.5. Security or integrity of telephony and data processing systems In providing its services, sipgate places great importance on the security and integrity of its systems and data as well as the correct functioning of the systems used. sipgate's infrastructure is always kept up to date with the latest technology and complies with the current technical guidelines and valid standards. In the event of breaches or detected vulnerabilities, measures are taken immediately to prevent them and to prevent them in the future. This applies in particular both to potential attacks on sipgate's network and to the proposed and implemented protective measures. sipgate has a security concept that has been approved by the Federal Network Agency. sipgate has implemented numerous technical and organizational measures in order to prevent security or integrity breaches as well as threats and vulnerabilities and to be able to respond to them at an early stage. Examples of such measures are: * sipgate regularly checks the technical equipment used for possible security vulnerabilities in order to identify and remedy potential threats or vulnerabilities at an early stage. * sipgate continuously monitors published security vulnerabilities. * sipgate regularly monitors and maintains the technical equipment used and has automatic monitoring for the essential systems around the clock, 365 days a year, so that it can respond quickly to acute security or integrity breaches at any time. * sipgate operates its own Network Operation Center, which monitors, among other things, the main network platforms and systems. * sipgate implements current technical guidelines and standards aimed at implementing technical measures to ensure integrity, i.e. being able, among other things, to recognize corrupt data as such and, if necessary, carry out a renewed data transmission. * sipgate informs the customers concerned about a breach of security or integrity. * sipgate has implemented and integrated an emergency concept. If vulnerabilities are identified at sipgate in any form whatsoever, they are remedied immediately. #### 11.6. Blocking certain number ranges The national number ranges 0137, 0138, 01212, 0181, 0185, 0188, 0900 and 118xx are blocked. Individual blocking of certain national, international number ranges and special service numbers is not possible. #### 11.7. Caller ID suppression The customer has the option of permanently or temporarily suppressing the display of their telephone number to the called party, if the function is supported by their terminal device. #### 11.8. Blocking number ranges/services provided in addition to the connection The customer has the option of blocking certain number ranges pursuant to Section 61 (1) as well as a claim to block the use and billing of services provided in addition to the connection via the mobile connection pursuant to Section 61 (2) TKG. #### 11.9. Use of the Call by Call and preselection service of netzquadrat Gesellschaft für Telekommunikation mbH (01064) is possible. Further Call by Call and preselection services are currently not available. sipgate GmbH, Düsseldorf, 16 October 2025 sipgate service description: sipgate price list: sipgate privacy policy: [Prerequisites for use – Internet access sipgate](https://www.sipgate.de/nutzungsbedingungen) [Notes on placing emergency calls sipgate](https://www.sipgate.de/nutzungsbedingungen) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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