blueSIP offers from now the porting of German PSTN telephone numbers. The phone number porting offers an ideal completion to the blueSIP services for business customers who would like to remain attainable under their public known phone number.

Please note: the service is available only for German residents or companies with a German business address.

blueSIP offers the opportunity to port numbers from already existing telephone extensions. This service covers all German local area telephone networks.

Background information on number porting

Using blueSIP's Premium* service, a number porting to blueSIP is possible. From your current carrier, the phone numbers will be ported to blueSIP to ensure a continuous availability with your well known numbers. However, the porting is only possible if you stay within the same local telephone area network. That means, a porting of phone numbers to other local area telephone networks is not possible.

Number porting order

Please fill in the complete order forms and send them to blueSIP/ccn. The contractor has to be same as the owner of the telephone numbers.

Number porting process steps

After order receipt, blueSIP will start the porting process. Your current carrier will inform us about the time, when the number will be ported to blueSIP. blueSIP will inform you in advance, as there will be a short downtine in availability for the ported numbers. After a successful porting, your phone numbers can be reached from outside.

Special features

Please note, that all numbers from your existing telephone connection will be ported. It is not possible to port partially a few numbers. By porting all numbers, it might be that your telephone line contract will be cancelled from your current carrier - and the basis for a broadband DSL connection might be vanished this way!

Charges from your current carrier for the porting of numbers ('transfer away') will not be covered by blueSIP.

Technical limitations

Please note, that calling of emergency numbers (e.g. 110, 112) is limited by using the blueSIP service. blueSIP recommends a hybrid configuration including the access gateway or router to route calls with preselected emergency numbers via classical PSTN lines. As an alternative, emergency calls may be placed by using a mobile phone.

CLIP

After the number has been ported to blueSIP, a validation is possible to broadcast your number on outgoing calls (CLIP).