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2. VoIP phone - Wikipedia

   en.wikipedia.org/wiki/VoIP_phone

   A VoIP phone or IP phone uses voice over IP technologies for placing and transmitting telephone calls over an IP network, such as the Internet. [1] This is in contrast to a standard phone which uses the traditional public switched telephone network (PSTN).

3. Sipura Technology - Wikipedia

   en.wikipedia.org/wiki/Sipura_Technology

   Sipura Technology, Inc. was a voice-over-IP (VoIP) startup company based in San Jose, California founded in 2003 with its siblings VideoCore and Komodo Technology, Inc. Sipura made VoIP telephone adapters including the Sipura Phone Adapter SPA2100, SPA3000, SPA9000, as well as SPA series IP phones, like the SPA941.

4. Voice over IP - Wikipedia

   en.wikipedia.org/wiki/Voice_over_IP

   VoIP phones and VoIP telephone adapters connect to routers or cable ... Secure voice over IP uses Type 1 ... the official release of Internet Phone (or iPhone ...

5. Mobile VoIP - Wikipedia

   en.wikipedia.org/wiki/Mobile_VoIP

   Mobile VoIP or simply mVoIP is an extension of mobility to a voice over IP network. Two types of communication are generally supported: cordless telephones using DECT or PCS protocols for short range or campus communications where all base stations are linked into the same LAN, and wider area communications using 3G or 4G protocols.

6. Telephone VoIP adapter - Wikipedia

   en.wikipedia.org/wiki/Telephone_VoIP_Adapter

   A telephone VoIP adapter (TVA), also called digital telephone adapter, is a device that interfaces digital private branch exchange (PBX) telephone sets to a Voice over Internet Protocol (VoIP) network, using, for example, the Session Initiation Protocol.

7. List of SIP software - Wikipedia

   en.wikipedia.org/wiki/List_of_SIP_software

   ShoreTel IP phone systems with unified communications and contact center built in Snom One free/blue/yellow (Snom acquired and renamed pbxnsip) (SIP) Speedflow Communications VoIP class 4/5 softswitches with integrated billing, transcoding, SIP-H.323 converter.