webmerlion

Voip sdk is based on IETF standards (SIP, STUN, etc.), so it should be compatible with other standard based products such as Asterisk, OpenSER other.

Please check Features page for more details about our voice internet phone sdk. Also you can download latest evaluation version on our Download page (evaluation version includes VoIP C++, VoIP Delphi, Sip ActiveX, C# and other languages examples, so you can see our sip dll in work).

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http://www.voipsipsdk.com/