session border controller interview questions

To ensure high-quality calls when using modern VoIP solutions, several crucial steps must be taken. This entails taking action such as disabling SIP ALG and getting a router that is designed for voice over internet protocol (VoIP) connections. Another action you can take is to implement a session border controller, which will increase the security of both data transfers and phone calls over your phone system.

Session Border Controller Interview Questions and Answers
  • Why do we need an SBC? SBCs are used to provide a number of security and performance benefits for VoIP networks. …
  • What’s the difference between an SBC and a PBX? …
  • How can you manage your SBC? …
  • What is SIP trunking?

Session Border Controllers — TOP 10 FAQ

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In the past year, we’ve shared a lot of knowledge about session border controllers, SBC applications, customer use cases, and installation and configuration information for FreeSBC. Numerous questions were also asked during that time, and we tried our best to address each one either verbally or in writing on the TelcoBridges forum. With this achievement, we thought it was appropriate to reflect on the most popular and common queries. So join us as we review our “Top 10” FAQ. A recording of the webinar can be found at: https://www2. telcobridges. com/FreeSBCVideoLibrary Learn more at: www. freesbc. com.

In the past year, we’ve shared a lot of knowledge about session border controllers, SBC applications, customer use cases, and installation and configuration information for FreeSBC. Numerous questions were also asked during that time, and we tried our best to address each one either verbally or in writing on the TelcoBridges forum. With this achievement, we thought it was appropriate to reflect on the most popular and common queries. So join us as we review our “Top 10” FAQ. A recording of the webinar can be found at: https://www2. telcobridges. com/FreeSBCVideoLibrary Learn more at: www. freesbc. com.

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What is a Session Border Controller: Functions

  • Security – SBCs protect against Denial of Service (DoS) and Distributed DoS (DDoS) attacks, safeguard against toll fraud and service theft, and provide media and signaling encryption to ensure confidentiality and protect against impersonation/masquerade
  • Multivendor interoperability – SBCs normalize SIP (Session Initiation Protocol) signaling stream headers and messages to mitigate multivendor incompatibilities
  • Protocol interworking – SBCs enable interworking between diverse protocols (i.e. SIP-to-H.323) or diverse codecs (i.e. g.711 to g.729 transcoding)
  • Quality of service (QoS) – SBCs enforce call admission control (CAC) policies, type of service (ToS) marking, or rate limiting for service quality assurance
  • Session routing – SBCs route sessions across network interfaces to ensure high availability or enable least cost routing (LCR)
  • Communications service providers and enterprises both make use of SBCs. At the access, core, and interconnect network borders, service providers deploy SBCs. SBCs are typically installed by businesses at the edge of their networks, for example, as the endpoint of a SIP trunking service. Numerous manufacturers provide separate service provider SBC and enterprise SBC product families due to the various functional and scalability requirements. Enterprise SBCs are commonly referred to as E-SBCs or eSBCs. To support network functions virtualization (NFV), some SBC manufacturers offer software-based SBCs that run on virtualized industry-standard servers.

    FAQ

    How does a session border controller work?

    An SBC is situated in the middle of the call path between an IP-PBX and a service provider. In order to prevent outside intruders from using this information to hack the enterprise VoIP network, the SBC filters out any sensitive information when a call is generated and arrives at it from the PBX.

    What is SBC used for?

    On a voice over Internet protocol (VoIP) network, a session border controller (SBC) is a specialized hardware or software program that controls how phone calls are placed, answered, and terminated.

    Why do I need a session border controller?

    SBCs mitigate threats and protect the network from DoS attacks. Malware can accompany DoS attacks, so when an SBC prevents a DoS attack it also ensures vital security from dangerous malware. When an SBC detects a potential threat, it can immediately stop the issue.

    What is best session border controller?

    Top 10 Session Border Controller Vendors
    • AudioCodes E-SBC.
    • Edgewater Networks.
    • Ribbon Session Border Controller.
    • Dialogic Session Border Control.
    • Ingate Systems E-SBCs.
    • Metaswitch Networks.
    • Oracle Enterprise Session Border Controller.
    • Patton.

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