SIP trunking

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SIP trunking is a voice over Internet Protocol (VoIP) technology and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and unified communications facilities. [1] Most unified communications applications provide voice, video, and other streaming media applications such as desktop sharing, web conferencing, and shared whiteboard. [2]

Contents

Domains

The architecture of SIP trunking provides a partitioning of the unified communications network into two different domains of expertise: [3]

The interconnection between the two domains must occur through a SIP trunk.[ citation needed ] The interconnection between the two domains, created by transport via the Internet Protocol (IP), involves setting specific rules and regulations as well as the ability to handle some services and protocols that fall under the name of SIP trunking. [4]

The ITSP is responsible to the applicable regulatory authority regarding all the following law obligations of the public domain: [5]

The private domain instead, by nature, is not subject to particular constraints of law, and may be either the responsibility of the ITSP, the end user (enterprise), or of a third party who provides the voice services to the company. [6] [7]

Architecture

Each domain has elements that perform the characteristic features requested of that domain, in particular the result (as part of any front-end network to the customer) is logically divided into two levels:

The private domain consists of three levels:

See also

Related Research Articles

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References

  1. ↑ "SIP trunking migration: Enterprise opportunities and challenges".
  2. ↑ "SIP Trunking Explained". Technology Convergence Group. Retrieved 8 September 2015.
  3. ↑ Gaboli, Ivan; Puglia, Virgilio (Jan 2011). "SIP Trunking the route to the new VoIP services". Kaleidoscope: Beyond the Internet? − Innovations for future networks and services, 2010 ITU-T, 13-15 Dec 2010. IEEE. ISBN   978-1-4244-8272-6.
  4. ↑ "SIP trunking explained". 2014-07-30.
  5. ↑ "Legal issues in different countries".
  6. ↑ "SIP trunking".
  7. ↑ "VoIP Office".
  8. ↑ "Role of Border Element". Cisco.
  9. ↑ "Acme Packet Net-Net session border controllers" (PDF). Acme Packet. Archived from the original (PDF) on 2011-07-17.
  10. ↑ "SIP Trunking Enterprise Solutions". Ingate Systems. Archived from the original on 2013-07-22.
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