How do I book phone numbers?

Instructions for booking German local, mobile, and international phone numbers with sipgate, including test numbers and verification.

At sipgate, you have the option to German local and mobile numbers as well as international numbers and extensions to book. Here's how it works:

German local and mobile numbers

As an admin, you can in the account under the navigation item Phone numbers using the button Book select local and mobile numbers.

If you have created multiple locations, when booking local numbers you can select the desired location and thus the desired area code.

After you have number of phone numbers selected, the available phone numbers will be displayed, which you can then book.

To be able to receive and use German phone numbers, you need at least one location in Germany, which you must verify. International numbers can be booked without verification.

International numbers

With international numbers, you enable customers to make a local call from abroad.

1. Select country: Select the desired country and the appropriate area code range.

2. Check verification documents: Upload the required proof of address documents (varies by country).

3. Enter company details: Enter your details in the chosen country .

4. Select or create location: Select an existing or new location in the destination country.

5. Use phone number: After successful verification, the number appears in the account and can be Routing integrated.

Note

• In many countries, a valid address is sufficient as proof.

• Phone numbers are usually available within a few minutes available, with additional documents after approval.

Additionally, the following applies:

• You cannot book international numbers in bulk.

• A maximum of four simultaneous incoming calls is possible.

• International numbers cannot be used for incoming fax, SMS, or data communications.

• If an international number is set as the caller ID, calls or faxes to special numbers such as 0800 may not be possible in some cases.

• International numbers cannot be listed in public phone directories.

• You cannot take international numbers with you (port them).

• For legal reasons, we cannot guarantee that the international number will be transmitted when calling non-European countries. Within the European Economic Area (EEA), it depends on the telephone company of the person being called whether your number is transmitted. In individual cases, your German number may therefore be displayed instead of the international number.

More information on the current legal situation can be found in the Telecommunications Act as well as in the Federal Network Agency's Order 44/2022 on the Telecommunications Act.

Test numbers

If you want to test sipgate, during the trial phase you have five test numbers with the Düsseldorf area code 0211 at your free disposal. These numbers are usable for 30 days and are then automatically deactivated, so by then at the latest you must book your own numbers. The test numbers can be reached from all German landlines. However, from abroad you cannot be called on these numbers during the trial phase.

Important note: your Test numbers are deactivated, as soon as you in your account

• to the regular contract switch

• Your top up credit

• your cancel contract

• or a redeem voucher

Update from September 3, 2025