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MIRACALL PBXs Frequently Asked Questions



General Presales Questions
  • What is IP PBX?

     An IP PBX is a private branch exchange (telephone switching system within an enterprise) that switches  calls between VoIP (voice over Internet Protocol or IP) users on local lines while allowing all users to share a certain number of external phone lines. The typical IP PBX can also switch calls between a VoIP user and a traditional telephone user, or between two traditional telephone users in the same way that a conventional PBX does. The abbreviation may appear in various texts as IP-PBX, IP/PBX, or IPPBX. 

    With a conventional PBX, separate networks are necessary for voice and data communications. One of the main advantages of an IP PBX is the fact that it employs converged data and voice networks. This means that Internet access, as well as VoIP communications and traditional telephone communications, are all possible using a single line to each user. This provides flexibility as an enterprise grows, and can also reduce long-term operation and maintenance costs. Like a traditional PBX, an IP PBX is owned by the enterprise. 



  • What are SIP Methods / Requests and Responses? 
  • What are SIP Phones? 
  • Can you list all known SIP responses? 
  • What is a SIP server? 
  • What is a SIP-URI? 
  • What is a STUN Server? 
  • What is T38 fax? 
  • What is Unified Communications? 
  • What is a voice mail system? 
  • What is Voice over IP? 
  • VOIP-defined 


  • VOIP FAQ & Info 
  • VOIP gateway information - Learn about VOIP gateways 
  • Check out these VOIP blogs and VOIP links 
  • Sip phones / VOIP Phones types 
  • What is a good source of VOIP info? 
  • What is a VoIP Telephone? 
  • VOIP Definitions 
See also:
If your question is not answered on any of the links above please download and try the program. The manual can be opened or printed from within the program .
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If you are in doubt about whether our system will do what you want we recommend you try the sample testing. Using TeamViewer remote service for answers most questions


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