diamondcard.us

SIP, Prepaid calling card platform, Call Shop Billing, IAX2 Softphone, VOIP Private Label Solutions, DID, Wholesale Termination, Hosted PBX

voip (voice over ip) , voice , telephony , SIP , call shop billing , IAX softphone , softphone , cheap international calls , asterisk , IAX2 , voip termina...

zoiper.com

Zoiper, the free softphone to make VoIP calls through your PBX or favorite SIP provider. Available for iPhone, Android, Windows Phone 8, Windows, Mac and Linux.

softphone , VoIP , SIP , web phone , sip sdk , outlook