Alex Pilosov
IP Telephony for Fun and Profit
Wednesday, July 16, 2003, - 6:30pm-8pm
IBM Building, 9th Floor, 590 Madison Ave @ 57th Street
It is called by various names Voice over IP (VoIP), IP Telephony,
packet telephony. Whatever it is called the underlying foundation is
the Internet Protocol (IP) and its accompanying technologies, packet
switching, for example. As distinct from the old Ma Bell circuit
switched, dedicated circuit approach that was the old way of doing
telephony for most of the 20th century. With an operating system like
Linux and free, open source readily available IP telephony software you
can do amazing things. Hip things to amaze your cool self, and powerful
chores, no less nifty, to provide for eager consumers. Read on,
provisioning, billing systems are deployable today, the possibilities
for growth, the likely pent up demand is real.
We all (or most of us can) understand how IP networks are cobbled
together, and what makes them interoperate. Telephony, for geeks, has
always been a subject of interest, but, tools neccessary to meaningfully
play with it on a larger scale were unavailable until relatively
recently. The advent of open IP-telephony tools and
standards has made the difference.
Tools such as free software PBX'es (AsteriskPBX); or open source
software that provides call control, routing, media, policy, billing
information and provisioning (VOCAL); and GNU's Bayonne project, a
telecommunications application server.
To whet your interest here are a few things you can do, and, or will
be shown how to by Alex Pilosov (NYLUG member), our presenter this July
16th,
- Getting voicemail-over-web
- Voice reader for your email
- Automated attendant
- Follow-me service, discriminating between calls based on Caller-ID
or passwords (e.g., if my wife calls, ring my cell phone---or
perhaps not? maybe your boss is a better bet?)
and other cool things. Of course the standard voicemail needs are
also met with IP telephony, items such as Muzak-like service for call
holders (music on hold, or on transfer, with MP3s, etc.), call
forwarding/tranfering/parking, remore call pick-up, etc. Moreover,
packet telephony can offer facilities such as overhead paging,
multiple-conferences bridging, intercoms tie-ins. On it goes. Piqued?
You'll crave reading some IP telephony books, myriad RFCs by the time
you are done that evening.
Alex will run through:
- The history of telephone networks, from pre-1984 to SS7 to
post-1996 environment, through evolutions in protocols, and
comparisons to similar IP technologies.
- Overview of IP telephony, the various ways to interconnect an IP
network and the public switched telephone network (PSTN). Will
compare current protocols (SIP vs H.323), will layout a brief
overview of Free Software for IP telephony/VoIP.
- An introduction to Asterisk PBX, highlighting the many things you
can do with Asterisk PBX, broadband connection, and VoIP
service.
Alex is very knowledgeable and experienced with IP telephony
technologies, as he should be, he uses it in his firm's current litany
of services.
Wednesday July 16 will be this month's meeting date. It will be a
treat to be regaled with such depth of knowledge. Come early, good
sitting will go quickly and be scarce.
For More Information Visit:
About Alex Pilosov:
Alex Pilosov is a NYLUG.org member, a helpful contributor to the
nylug-talk mailing list. Alex operates a New York ISP (pilosoft.com), where his use of
Linux, free software and open technologies are a common, enlightened
occurrence. He has been known to provide BGP route updates to a dial-up
customer. A bit of a maverick.
Bonus!
If you missed this presentation, please refer to the following
MPEG-2 format movies. The expanded 5MB files are about 4mins long.
Movies are experimental and do not in any way represent the entire speaker presentation that occured in real time.
Please be patient downloads may take several minutes.
- MOV00666.MPG (5, 463, 401 bytes)
- MOV00667.MPG (5, 463, 563 bytes)
- MOV00668.MPG (5, 463, 374 bytes)
- MOV00669.MPG (5, 463, 578 bytes)
- MOV00670.MPG (5, 463, 318 bytes)
- MOV00671.MPG (5, 463, 473 bytes)
- MOV00672.MPG (5, 463, 521 bytes)
- MOV00673.MPG (5, 463, 276 bytes)
- MOV00674.MPG (5, 463, 616 bytes)
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- MOV00677.MPG (5, 463, 554 bytes)
- MOV00678.MPG (5, 463, 602 bytes)
- MOV00679.MPG (5, 463, 741 bytes)
- MOV00680.MPG (5, 463, 461 bytes)
- MOV00681.MPG (5, 463, 355 bytes)
- MOV00682.MPG (5, 463, 445 bytes)
- MOV00683.MPG (5, 463, 601 bytes)
- MOV00690.MPG (2, 684, 921 bytes)
- MOV00691.MPG (5, 463, 474 bytes)
- MOV00692.MPG (5, 463, 684 bytes)
- MOV00693.MPG (1, 801, 777 bytes)
Need an MPEG viewer for Linux? Try MpegTV.
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