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OfficeSIP Server
It is a simple application that allows you to use regular telephones....
OfficeSIP Alerter
OfficeSIP Alerter is a simple, easy-to-use and free sip messenger....
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OfficeSIP Messenger
OfficeSIP Messenger provides enterprises with advanced instant communications....
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OfficeSIP Softphone
Freeware SIP video softphone for Windows for VoIP providers and SIP PBX....
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OfficeSIP TURN Server
NAT traversal in VoIP connections...