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- NAT_traversal_with_session_border_controllers abstract "NAT traversal with session border controllers network address translators (NAT) are used to overcome the lack of IPv4 address availability by hiding an enterprise or even an operator’s network behind one or few IP addresses. The devices behind the NAT use private IP addresses that are not routable in the public Internet.The Session Initiation Protocol (SIP) has established itself as the de facto standard for voice over IP (VoIP) communication. In order to establish a call, a caller sends a SIP message, which contains its own IP address. The callee is supposed to reply back with a SIP message destined to the IP addresses included in the received SIP message. This will obviously not work if the caller is behind a NAT and is using a private IP address.Probably the single biggest mistake in SIP design was ignoring the existence of NATs. This error came from a belief in IETF leadership that IP address space would be exhausted more rapidly and would necessitate global upgrade to IPv6 and eliminate the need for NATs. The SIP standard has assumed that NATs do not exist, an assumption, which turned out to be a failure. SIP simply didn't work for the majority of Internet users who are behind NATs. At the same time it became apparent that the standardization life-cycle is slower than how the market ticks: Session Border Controllers (SBC) were born, and began to fix what the standards failed to do: NAT traversal.In case a user agent is located behind a NAT then it will use a private IP address as its contact address in the contact and via headers as well as the SDP part. This information would then be useless for anyone trying to contact this user agent from the public Internet.There are different NAT traversal solutions such as STUN, TURN and ICE. Which solution to use depends on the behavior of the NAT and the call scenario. When using an SBC to solve the NAT traversal issues the most common approach for SBC is to act as the public interface of the user agents. This is achieved by replacing the user agent’s contact information with those of the SBC.".
- NAT_traversal_with_session_border_controllers thumbnail SBC_NAT_Call_Handling.jpg?width=300.
- NAT_traversal_with_session_border_controllers wikiPageID "39158309".
- NAT_traversal_with_session_border_controllers wikiPageLength "10218".
- NAT_traversal_with_session_border_controllers wikiPageOutDegree "27".
- NAT_traversal_with_session_border_controllers wikiPageRevisionID "603573092".
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Category:Computer_networking.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink G.711.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink IP_address.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink IPv4.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink IPv6.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Internet_Engineering_Task_Force.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink NAT_traversal.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Network_address_translation.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Private_network.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Real-time_Transport_Protocol.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink STUN.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Session_Description_Protocol.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Session_Initiation_Protocol.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Session_border_controller.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Traversal_Using_Relays_around_NAT.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Uniform_Resource_Identifier.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Voice_activity_detection.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink Voice_over_IP.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink File:SBC_NAT_Call_Handling.jpg.
- NAT_traversal_with_session_border_controllers wikiPageWikiLink File:SBC_NAT_Registration_Handling.jpg.
- NAT_traversal_with_session_border_controllers wikiPageWikiLinkText "NAT traversal with session border controllers".
- NAT_traversal_with_session_border_controllers wikiPageUsesTemplate Template:Jargon.
- NAT_traversal_with_session_border_controllers wikiPageUsesTemplate Template:Multiple_issues.
- NAT_traversal_with_session_border_controllers wikiPageUsesTemplate Template:Notability.
- NAT_traversal_with_session_border_controllers wikiPageUsesTemplate Template:Orphan.
- NAT_traversal_with_session_border_controllers wikiPageUsesTemplate Template:Reflist.
- NAT_traversal_with_session_border_controllers subject Category:Computer_networking.
- NAT_traversal_with_session_border_controllers comment "NAT traversal with session border controllers network address translators (NAT) are used to overcome the lack of IPv4 address availability by hiding an enterprise or even an operator’s network behind one or few IP addresses. The devices behind the NAT use private IP addresses that are not routable in the public Internet.The Session Initiation Protocol (SIP) has established itself as the de facto standard for voice over IP (VoIP) communication.".
- NAT_traversal_with_session_border_controllers label "NAT traversal with session border controllers".
- NAT_traversal_with_session_border_controllers sameAs Q17153880.
- NAT_traversal_with_session_border_controllers sameAs m.0zb_fvb.
- NAT_traversal_with_session_border_controllers sameAs Q17153880.
- NAT_traversal_with_session_border_controllers wasDerivedFrom NAT_traversal_with_session_border_controllers?oldid=603573092.
- NAT_traversal_with_session_border_controllers depiction SBC_NAT_Call_Handling.jpg.
- NAT_traversal_with_session_border_controllers isPrimaryTopicOf NAT_traversal_with_session_border_controllers.
