The PBX was invited more than 50 years ago, SIP over 10 years. And we still just implement ISDN over IP. Time for a reboot, time to raise the bar and use the standards that has been developed during the last 10 years.
This talk, originally presented at Voip2day + ElastixWorld in Madrid 2012, presents the Edvina SIP 2012 reference profile, the thoughts behind it and where we are heading.
How to Troubleshoot Apps for the Modern Connected Worker
The secret of TCP/IP and how it affects your PBX
1. The hidden secret of
TCP/IP and the
Internet.
And how it affects your realtime platform.
Olle E. Johansson * oej@edvina.net * Twitter oej
Copyright Edvina AB, Sollentuna, Sweden 2012. All rights reserved.
3. 17 years later and we’re
still imitating a PBX.
Time to change.
4. The PBX
• Key line systems was
introduced in the 50’s
• One phone, multiple lines
• The enterprise PBX
was introduced in the
1960’s
• Lowered the cost
• internal calls where free
• reduced need for outside
lines
Photo: Joseph A. Carr
5. The PBX was the heart
of the company.
And the receptionist knew everything
worth knowing in the company.
6. • This is old stuff.
Photo: City Light Photographic Negatives (Record Series 1204-01),
27. IBM SNA
Novell IPX
Microsoft
Lan Manager
CC mail
MS Mail
DecNet
28. IBM SNA
Novell IPX
This is exactly what
Microsoft
Lan Manager
customers wanted to
avoid. CC mail
MS Mail
Customer pressure delivered the PC, Unix and TCP/IP
DecNet from vendors.
networks. Freedom from lock-ins
Saving money by protecting your investment.
46. 2002
Connected.
All hosts should be able to contact any other
connected host.
2012
47. 2002
Extensible.
SIP solves one problem: Session management.
What you do with it is up to you.
2012
48. Where and when were
these rules defined?
Stupid core. Intelligent endpoints.
Connectivity end2end.
49. the goal is full "open system
interconnection": an Internet host
must be able to interoperate
robustly and effectively with any
other Internet host, across
diverse Internet paths.
RFC 1122, 1989
50. However, isolated LANs seldom stay isolated
for long; they are soon gatewayed to each
other, to organization-wide internets, and
eventually to the global Internet system.
In the end, neither the customer nor
the vendor is served by incomplete
or substandard Internet host
software.
RFC 1122, 1989
51. So where did we go wrong?
We’re stuck with a 50 year old PBX architecture.
A telco model forced onto the TCP/IP architecture.
52. I have at least five chat
apps, six voip apps.
Using separate islands of communications. It’s way too
complicated for someone soon 50 years old.
E-mail doesn’t
work that way.
53. Take control of our
communication.
After 50 years with the PBX, we need to think in new
ways for IP based realtime communication.
65. SIP 2012.
Much more than RFC 3261.
WebRTC. Session timers. Opus.
ICE. SRTP/DTLS. SIP Identity
OUTBOUND. GRUU. And more...
66. Stuff I’ve never seen in
call for tenders.
It’s time for change.
WebRTC. Session timers. Opus.
ICE. SRTP/DTLS. SIP Identity
OUTBOUND. GRUU. And more...
75. I want to be free.
If you don’t want to be free, call your nearest
<large company> representative today and
ask him what you should buy next.
And give him full access to your credit card too.
www.open-stand.org
76. Thank You.
TACK! Mina damer och herrar!
Photographs Copyright Olle E. Johansson http://edvina.net/sip2012