Lambert M. Surhone (u. a.) | VoIP User | Taschenbuch | Englisch
26,95 €
Taschenbuch vonLambert M. Surhone (u. a.). Sprache: Englisch. VoIP User is a community driven and financed SIP based VoIP network. The way that VoIP User is funded is noteworthy: Calls into VoIP User's numbers generate a small amount of per minute revenue (the ?. ).
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