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SIPphone Last modified: Monday, May 02, 2005
Based on SIP (Session Initiated Protocol) a SIPphone is a SIP service that provides a free SIP-based VoIP network. To use SIPphone you need either a SIPphone adapter or softphone software and a broadband Internet connection.  To make free in-network (SIP to SIP) calls, both sides of the call must have a SIPphone adapter or softphone. To make inexpensive calls to non-SIPphones (PSTN), you will need SIP minutes.
Enterprise VoIP Planet The IT Manager's Guide to Voice over IP SIPphone Call worldwide over your broadband Internet connection with any phone.	Related Categories Internet Protocols Internet Telephony Telecommunications Related Terms CO IP ISP network SIP soft phone teleconference VoIP