Show 87 – A SIP of Voice

The Packet Pushers voice crew reassembles, this time for a discussion of SIP trunks. Erik Peterson, Amy Arnold and Tom Hollingsworth are the technical talent this week, while Ethan Banks hosts and tries to keep up with the conversation without going, “Huh?” too many times. Hey, we can’t all be voice engineers. ;-)

SIP gets a pretty good look from us as we take on the following talking points:

  • What’s SIP stand for, and what’s it used for?
  • What are the common alternatives to SIP, and why is SIP preferred?
  • What sorts of widely recognized hardware/software uses SIP?
  • How does SIP work?
  • Implementing SIP trunking in the enterprise for PSTN access.
  • What should enterprises be considering when planning a transition to SIP?
  • What is a Session Border Controller?
  • What is SIP normalization, and when does it need to be used?
  • SIP applications in production networks.
  • SIP troubleshooting tools. (Packet captures, ladder diagrams, per call debugging, and common show & debug commands.)
  • How do I learn more about SIP? (Read Tom’s review of the CiscoPress title “SIP Trunking”.)

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About Ethan Banks

Ethan Banks, CCIE #20655, is a hands-on networking practitioner who has designed, built and maintained networks for higher education, state government, financial institutions, and technology corporations. Ethan is a host of the Packet Pushers Podcast, which has seen over one million unique downloads, and today reaches a global audience of over ten thousand listeners. Also a writer, Ethan covers network engineering and the networking industry for a variety of IT publications. He is also the editor for the independent community of bloggers at PacketPushers.net. Follow @ecbanks.

  • Matthew Walster

    There was an interesting talk on SIP, and that it’s more than just VoIP at FOSDEM this year: http://www.slideshare.net/saghul/sip-beyond-voip