Next Meetup

The SIP stack; A look under the hood of Voice Over IP
This event is free and open to the public. Abstract: If you are at all curious about the technology behind voice over ip which has almost completely replaced the old wired telephone infrastructure you will not want to miss this presentation and discussion hosted by Dr. Vijay K. Gurbani, You will find out the details of exactly how this signalling and call setup protocol for IP-based communications puts voice communications on the internet. You will learn about how this technology was developed, the network protocols and elements that make it work and the messaging that facilitates and replaces the mechanical signalling of the old wired network. You will learn about what’s required in a network and how it has to scale to make this work in a large corporate environment. You will have the opportunity to ask questions and learn about other aspects of this as well. Bio: Vijay K. Gurbani is a Distinguished Member of Technical Staff at Bell Laboratories' End-to-End Mobile Network Research department in Nokia Networks. He holds a B.Sc. in Computer Science with a minor in Mathematics, a M.Sc. in Computer Science, both from Bradley University; and a Ph.D. in Computer Science from Illinois Institute of Technology. His current work is focused on scalable analytic architectures and algorithms for autonomic 5G networks. His research interests are multimedia protocols, security and privacy in multimedia protocols, peer-to-peer networks, distributed programming and open/inner source. Vijay's research has resulted in products that are used in national and international service provider networks. He has over 60 publications in peer-reviewed conferences and journals, 5 books, 7 granted U.S. patents and 18 Internet Engineering Task Force (IETF) RFCs. As usual we will be having a "Meeting After the Meeting" for talk and drinks, and since the meeting is on Thursday we are planning it at the Bulldog Alehouse restaurant in Bolingbrook on Weber Rd. ( The link goes to the restaurant's Bolingbrook website with a clickable, expandable map. Google Maps directions to Fountaindale Library ( ) Posting on UniForum Chicago website ( Subscribe to our email list ( ) For more information about UniForum Chicago contact

Bolingbrook Fountaindale Library Board Room (2nd Floor)

300 West Briarcliff Road · Bolingbrook, IL

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    Public Group

    UniForum Chicago is a non-profit organization that holds monthly informative and technical discussions every fourth Tuesday from 6:30pm to 8:30pm. This provides a local forum in the Chicago area for open systems and UNIX discussion and allows us to meet with students and other professionals in the field.

    All meetings are free and open to members and non-members alike and currently are held at:

    Bolingbrook Fountaindale Library

    300 West Briarcliff Road

    Bolingbrook, IL 60440

    Directions to get there: (,+Bolingbrook,+IL+60440/@41.6988179,-88.0815764,17z/data=!3m1!4b1!4m5!3m4!1s0x880e5bce168370db:0xf1eba6f8d07fdbc7!8m2!3d41.6988139!4d-88.0793877)

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    We are always looking for presenters! If you or your company would like to give a technical presentation at one of our monthly meetings, please contact Scott Nemec at Deadline to submit topics is 2 weeks before the meeting. Once chosen, subsequent proposals are reviewed and counted towards the next General Meeting.

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