1)   ZOIPER Free SIP and IAX softphone 2.14
ZOIPER 2.0 Free Edition is a user-friendly IAX and SIP softphone compatible with the Asterisk platform or any other IAX or SIP capable system. ZOIPER Free . Find out the many advantages of this FREE product from Attractel!

 2)   IAXCOMM - VoIP SoftPhone 1.0
Das Protokoll welches von der OpenSource-Telefonanlage Asterisk benutzt wird. Es dient dabei sowohl zur Verbindung zwischen einzelnen Asterisk-Servern als auch zur Kommunikation zu Endgeräten, mit denen somit Voice-over-IP-Gespräche möglich sind.

 3)   Webrequest Callback-Button VoIP-Callbutton
A client clicks on the call-back-button, types in his number, will be called back from the server and at the same time the server calls the website-operator and finally connects them.

 4)   Webrequest Telephonvalidierung VoIP-Webservice
They have a on-line Shop, a forum, a contact stock exchange or a similar Community in the InterNet and place again and again disappointed firmly that people with wrong data announce themselves.