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 is an auto-attendant?
• What different types of CODECS are there? 
• What is DID - Direct Inward Dialing? 
• What is ECHO cancellation? 
• What does ENUM mean? 
• How does FAX work in VOIP environments? 
• What is FOIP - Fax over IP? 
• What do the terms FXS and FXO mean? 
• What is H323? 
• What are the benefits of an IP PBX? 
• What SIP-based IP PBX's are available? 
• IP PBX: How an IP PBX / VOIP phone system works 
• What are IP Phones / IP Telephones? 
• What is IVR / interactive voice response? 
• 10 reasons to switch to an IP PBX 
• What is a PBX Phone System? 
• What is RTCP - Real Time Transport Protocol? 
• What is RTP - Real Time Transport Protocol? 
• What is SDP - Session Description Protocol? 
• What is SIP - Session Initiation Protocol? 
• Example of SIP Call session between 2 phones 
  

• SIP FAQ & INFO 
  
• 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:

• The program itself (click here to install you don't need to buy to try)
• Technical Support for Miracall PBX
• Pricing, Purchasing and the Sales Process
• New Feature Suggestions or Feedback
• IP PBX Forum
• None of the above answers the question. Contact us...