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  2. Textfree - Wikipedia

    en.wikipedia.org/wiki/Textfree

    TextFree (formerly called Pinger and sometimes stylized as textfree) is a mobile application and web service that allows users to send and receive text messages, as well as make and receive VoIP phone calls, for free over the internet. The service costs nothing because it is supported by ads, but users have the option of paying for an ad-free ...

  3. List of VoIP companies - Wikipedia

    en.wikipedia.org/wiki/List_of_VoIP_companies

    VoIP communications for small businesses, home and mobile Radvision: New Jersey: United States: Video conferencing and telepresence technologies RingCentral: Belmont, CA and London: United States and UK: Cloud-based telephone systems Sipgate: Düsseldorf: Germany: VoIP and mobile phone services sipservice: Winterthur: Switzerland: VoIP service ...

  4. Comparison of user features of messaging platforms - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_user...

    SMS (short message service) is a text messaging service component of most telephone, Internet, and mobile device systems. It uses standardized communication protocols to enable mobile devices to exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines.

  5. FreeSWITCH - Wikipedia

    en.wikipedia.org/wiki/FreeSWITCH

    FreeSWITCH is a free and open-source telephony software for real-time communication protocols using audio, video, text and other forms of media. The software has applications in WebRTC, voice over Internet Protocol (VoIP), video transcoding, Multipoint Control Unit (MCU) functionality and supports Session Initiation Protocol (SIP) features.

  6. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    Not all numbers with the "080" prefix are toll-free when called from a mobile phone. In Latvia the prefix 8000-xx-xx is used for toll-free services. They are toll-free only when dialed from landlines, and charged the same as a land line when dialed from cell phones. In Malaysia the prefix is 1800. Free if calling from a land-line and VoIP only.

  7. List of telecommunication companies in Pakistan - Wikipedia

    en.wikipedia.org/wiki/List_of_telecommunication...

    Mobile Broadband Postpaid & Prepaid Mobile Banking (S-Paisa) Government of Pakistan, Ministry of Information Technology and Telecommunication. 1.90 million Mobile virtual network operators (MVNO) 6 Onic 410 / 03 0339x 2G: 900 MHz (GPRS, EDGE) 3G: 900 MHz (UMTS, HSPA+) 4G: 1800 (B3) / 2100 (B1) MHz (LTE/LTE-A) Roams on SCO: Mobile Broadband

  8. Category:Free VoIP software - Wikipedia

    en.wikipedia.org/wiki/Category:Free_VoIP_software

    Pages in category "Free VoIP software" The following 34 pages are in this category, out of 34 total. This list may not reflect recent changes. A. ... Mobile view ...

  9. PTCL - Wikipedia

    en.wikipedia.org/wiki/PTCL

    Pakistan Telecommunication Company Ltd., commonly known as PTCL, is the national telecommunication company in Pakistan. [ 1 ] [ 3 ] PTCL provides telephone and internet services nationwide and is the backbone for the country's telecommunication infrastructure.