Volume 20, Number 9 - September 2004
An Introduction to the Asterisk Open Source PBX
by Gil Kloepfer at UT Applied Research Labs
Thursday, September 16, 7:00 p.m.
The CACTUS Newsletter is a monthly publication,
distributed to our members and other interested
people. Visit the CACTUS Newsletter on the web at http://www.cactus.org/Newsletter/.
There you will find archives of back issues, as well as instructions on
how to subscribe to the email distribution.
The next CACTUS meeting will be held on Thursday, September 16, 2004 at
7:00pm (doors open 6:30pm for pizza and informal discussion), in the
auditorium of UT Applied Research Laboratories. (See end of newsletter
for directions to the facility).
An Introduction to the Asterisk Open Source PBX
It has been over a year since Lenny's & Brian's presentation that
introduced us to the wonderful world of VoIP (Voice over IP)
and IP Telephony. Thanks to their introduction, Gil Kloepfer at
UT Applied Research Labs has been investigating and testing VoIP phones
and the Asterisk Open Source PBX as a potiential replacement for their
aging telephone switch. In his presentation Gil will be introducing
Asterisk and how to get started with your own PBX. He will also
discuss some of the challenges associated with deploying VoIP
and Asterisk in an enterprise environment.
We would like to thank David Wieboldt for renewing his membership for
To renew your membership, please send check or money order
payable to CACTUS ($30/yr for regular membership and $100/yr
for corporate sponsorship):
PO BOX 9786
Austin, TX 78766-9786
You can also pay in person at the general meetings. Please direct
any inquiries or address changes to membership [at] cactus <dot> org.
||Lindsay Haisley (fmouse at fmp.com)|
||Johnny Long (longjy at thecb.texas.gov)|
||Randy Zagar (jrzagar at cactus.org)|
||Luis Basto (basto at cactus.org)|
||Thomas Bodine (tbodine at cactus.org)|
||Ray Solanik (solanik at cactus.org)|
||Ron Roberts (ronro at bga.com)|
|Mark Scarborough (mscar at cactus.org)
M.H. Khan (mhk at cactus.org)
Significant Contributing Sponsors
- Applied Research Laboratories/University of Texas at Austin (http://www.arlut.utexas.edu/)
- (Gil Kloepfer, Computer Science Division (CSD), 835-3771, gil [at] arlut <dot> utexas <dot> edu)
- CoreNAP, L.P. (http://www.corenap.com/)
- (Kenneth Smith, (512) 685-0010, kenneth [at] corenap <dot> com)
"Providing Austin and central Texas businesses and power users the best
choice for server colocation and high speed Internet access."
- OnRamp (http://www.onr.com/)
- Internet service provider.
- Outserv.net (http://www.outserv.net/)
- IT operations and management solutions to small and midsized businesses.
- Dresser Industries - Wayne Division (http://www.wayne.com/)
- (Steve Cox, steve <dot> cox [at] dresser <dot> com, (512) 338-8444)
A leading supplier of integrated retail solutions to the global
petroleum and convenience store industries, including point-of-sale
systems, fuel dispensers, and after-sale support services.
- Journyx (http://www.journyx.com/)
- Provider of workforce management software and services.
- Prog Corp.
- (David Mallis, prog [at] cactus <dot> org, (512)
Develops educational materials used for in-service training, classroom
teaching, and independent study. They also provides consulting services
for instructional program design, development, and implementation.
- VoIPing, LLC (http://www.voiping.com/)
- (info [at] voiping <dot> com, (512) 698-8647 or (512) 698-8031)
- A Central Texas privately owned and operated partnership specializing
in IT Consulting and Services.
Friends of CACTUS
- Applied Formal Methods, Inc.
- (Susan Gerhart, 794-9732, gerhart [at] cactus <dot> org)
- Auspex Systems (http://www.auspex.com/)
- Fastest reliable network fileservers.
- Austin Code Works
- (Scott Guthery, 258-0785, info [at] acw <dot> com)
- BestRegistrar.com (http://www.bestregistrar.com/)
- (Steve Locke, (800) 977-3475), swl [at] cas-com <dot> net)
A top-level domain name registrar, CORE member.
- (Maurine Mecer, 502-0190 [FAX 502-0287])
- EDP Contract Services
- (Mark Grabenhorst, 346-1040) Professional recruiting.
- Hewlett Packard (http://www.hp.com/)
- (Bill Sumrall, 338-7221)
- Hounix (http://www.texascomputers.com/hounix/)
- (Marilyn Harper)
Houston's Unix Users Group.
- Network Appliance Corporation (http://www.netapp.com/)
- (Frank Mozina, fmozina [at] netapp <dot> com)
- O'Keefe Search (http://www.okeefesearch.com/)
- (John O'Keefe, john [at] okeefesearch <dot> com, 512-658-9224 or 888-446-2137)
- Rocksteady Networks, Inc. (http://www.rocksteady.com)
- (Eric White, 512-427-1319, ewhite [at] rocksteady <dot> com)
Dynamic bandwidth management and security enforcement.
- Sailaway System Design
- (Chris J Johnson, 447-5243)
- Schlumberger (http://www.slb.com/)
- (Kathy O'Brien, obrien [at] asc <dot> slb <dot> com)
Technical services and products in over 100 countries.
- Silicon Graphics (http://www.sgi.com/)
- (Don Williams, 346-9342)
- Solid Systems
- (Pete Farrell, 442-2222)
- Starflight Corp. (http://www.the-spa.com/jon.roland/)
- (Jon Roland, jon <dot> roland [at] the-spa <dot> com)
Computer consulting, management solutions, documentation, and technical writing.
- Sterling Infomation Group (http://www.sterinfo.com/)
- (Darrell Hanshaw, 344-1005, dhanshaw [at] sterinfo <dot> com)
- Sun Microsystems (http://www.sun.com/)
- (Rick Taylor)
Supplier of Unix client-server computing solutions.
- Texas Internet Consulting (http://www.tic.com/)
- (Smoot Carl-Mitchell, 451-6176, smoot [at] tic <dot> com)
TCP/IP networking, Unix, and open systems standards.
- A Sun Authorized Training Center and a Hardware Reseller.
- Unison Software
- (Shelley St. John, 478-0611)
Supplier of networked systems management solutions.
- UT Computer Science Department
- (Patti Spencer)
- UT Computation Center
- (Mike Cerda, 471-3241, cerda [at] uts <dot> cc <dot> utexas <dot> edu)
CACTUS meets on the third Thursday of each month at the Applied Research
Labs (ARL) in the JJ Pickle Research Campus (JJ PRC). We'll meet in
the main auditorium located directly behind the guard's desk and main lobby.
Please do not show up earlier than 6:20 pm on the specified day. Enter
through the main entrance at 10000 Burnet Road for ARL:UT. Tell the guard
that you are here for the CACTUS meeting. You will be required to sign
a log book, but not required to wear a badge. The guards will direct you
to the auditorium entrance. Limited parking in the front of the building
is available, but more extensive parking is available in the large parking
lot just north of the ARL building. After 6:30 pm, all entrances to JJ
PRC, except for the Burnet Road entrance, are closed and locked. You can
still enter the parking lot in front of the ARL building. No parking tags
are necessary after 6:00 pm. See map for further details.
Online maps are available at:
As always, please leave the facility as you saw it when you arrived.