callbackbuttun is also a very clevere alternative to classical 0800 it the service number. Because a 0800'er call number costs not only uniquely (only alone the dispatching costs 62.50 euro with the federal net agency), but the telefongesellschaften takes also not insignificant monthly basic charges and to it still quite expensive Verbindnugsentgelte around the discussions to you to transport. The Rueckrufbutton is available however without basic charges (tariff Classic) and without Setupgebuehr. Only the connecting costs result, which are however favorable and are by far under the costs of the supply of a 0800er. The Rueckrufbutton is however not only an alternative to 0800er numbers, but offers further strong advantages for your homepage. Announce, insert and loose-put. Starting assets give it free of charge in addition so that you can test and telephone immediately. Further features: * Simple and fast configuration * Restriction on portable radio or international call numbers * Adjustable opening times * Cost control by SiPHome Prepaid and single connecting proof * Starting assets for immediate trying out! * Adjustment to own layout by Stylesheet file * Integration of personal announcement and own diagram * In several languages (German and English) * own telephone number, SIP - IAX address as goal call number definably * For programmer even only the API usable, in order to be able to start e.g. calls from your own software