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Kevin Werbach
e Wharton School, Univ. of Pennsylvania
werbach@wharton.upenn.edu
No Dialtone
e End of the Public Switched
Telephone Network
(full paper available at http://bit.ly/16Ve7re)
e PSTN
“Any common carrier switched network,
whether by wire or radio, including local
exchange carriers, interexchange carriers,
and mobile service providers, that use
the North American Numbering Plan in
connection with the provision of
switched services.”
47 C.F.R. §20.3
e PSTN
“Any common carrier switched network,
whether by wire or radio, including local
exchange carriers, interexchange carriers,
and mobile service providers, that use
the North American Numbering Plan in
connection with the provision of
switched services.”
47 C.F.R. §20.3
e PSTN
“Any common carrier switched network,
whether by wire or radio, including local
exchange carriers, interexchange carriers,
and mobile service providers, that use
the North American Numbering Plan in
connection with the provision of
switched services.”
47 C.F.R. §20.3
POTS
One of
the Great
Technological
Achievements
in Human
History
e PSTN is Dying
•  Residential switched access lines
–  194 million in 2000
–  101 million 2012
•  % of US Households with POTS
–  93% in 2003
–  25% in 2013
•  Why? IP convergence + wireless
–  43% of homes wireless-only and 32%
served by VOIP by end of 2013
Going, Going…
•  AT&T Trials Petition (11/7/12)
–  No requirement to maintain legacy PSTN networks
–  No obligation to interconnect
–  Customers can be transitioned to IP-based without permission
•  AT&T Infrastructure announcement (same day)
–  $14 billion over 3 years to upgrade 75% to U-Verse;
the rest served via wireless
•  Verizon’s Lowell McAdam (July 2013)
–  “[E]very place we have FiOS, we are going to kill the copper. We are
going to just take it out of service and we are going to move those
services onto FiOS.”
–  “[In rural areas,] we are going to cut the copper off there. We are
going to do it over wireless.”
•  2009 NBP public notice
•  TAC initiative
•  2011-12 Workshops
•  Technology Transitions Task Force
•  5/13 public notice on trials
No Dialtone: The End of the Public Switched Telephone Network
Verizon’s Response
What Voice Link is Missing
•  Medical alert home monitoring services
•  Telecommunications relay service for the deaf and hard of hearing
•  Digital Video Recorder (DVR) program guide downloads
•  Credit card processing terminals for small businesses
•  ATM machines for small businesses
•  Home alarm monitoring
•  Calling to 900-number (paid) services
•  Collect calls
•  Calling cards or other dial-around calls
•  International dialing (without a supplemental plan)
What to Make of is
•  e transition is a good (and necessary) thing.
•  Unnecessary regulation or financial burdens are bad.
But…
•  Neither the rationale nor the content of telecom
regulation is necessarily tied to a technology.
•  Our expectations of the PSTN haven’t diminished.
Legacy Silo Legal Structure
Data
Telephony
(Title II)
Cable
(Title VI)
Broadcast
(Title III)
(also legacy slides – from 2005!)
Data
Voice
Emerging Reality
Web
Email
Video
File
Transfer
Data
Voice
Emerging Reality
Web
Email
Video
File
Transfer
All or Nothing Regulation
•  Ad hoc response to VOIP under ancillary authority
•  Open Internet Order mess
Road to Nowhere?
Six Dimensions of the PSTN
1.  a technical architecture
2.  a regulatory arrangement
3.  a business and market
structure
4.  universal connectivity
5.  strategic national
infrastructure
6.  a social contract
1.  a technical architecture
2.  a regulatory arrangement
3.  a business and market
structure
4.  universal connectivity
5.  strategic national
infrastructure
6.  a social contract
What Remains?
Interconnection
•  Distinguish from non-discrimination
–  Central issue is universality, not fairness
•  Are commercial forces enough?
–  Comcast-Level 3, Cogent-Verizon
–  Terminating access monopoly
–  Port capacity and other variables
•  Impact of usage caps and end-user pricing
•  FCC data roaming requirement:
“commercially reasonable terms,” with dispute resolution
(upheld by DC Circuit)
Coordination
•  47 USC §256(b)(1):
“oversight of coordinated network planning by …
providers of telecommunications service….”
•  Numbering
–  Some unresolved technical standards for VOIP interconnection
–  Need for PSTN-to-IP number portability database
•  Network reliability
–  E.g. requirements for battery backup
Social Commitments
•  Emergency services (E911)
•  Universal service
•  Disability access
•  Data privacy (CPNI)
•  Consumer protection (slamming/cramming)
•  Law enforcement access (CALEA)
•  Etc.
Making it Work
Transition Mechanisms
•  “No carrier shall discontinue, reduce, or impair service … unless and
until there shall first have been obtained from the Commission a
certificate that neither the present nor future public convenience and
necessity will be adversely affected thereby.” 47 USC §214(a)(3)
•  Cutting the Gordian Knot of Internet regulation
•  Requirements for 214 approval
–  Interconnection on commercially reasonable terms, subject to
arbitration and disclosure requirements.
–  Participate in coordination mechanisms for PSTN-to-IP
numbering integration and network reliability.
–  Continue to meet social obligations.
Date Certain
•  Analogy to DTV transition
–  Most proposals suggest 2017 or 2018
•  Date certain for what exactly?
–  AT&T’s view: When TDM interconnection rights end
•  My proposal: carriers meeting interconnection,
coordination, social contract obligations freed from
legacy requirements at that point
•  Trials and troubleshooting for implementation surely
will be required
I have to hang up now…
Full paper available at http://bit.ly/16Ve7re
werbach@wharton.upenn.edu
Twitter: @kwerb
Photo Credits
•  Slide 1: Iraxmas (http://www.flickr.com/photos/iraxmas/390798973/)
•  Slide 2-4: Science Museum London (http://www.flickr.com/photos/sciencemuseum/7642672140/)
•  Slide 6-7: Kim Seng (http://www.flickr.com/photos/captainkimo/8717789122/)
•  Slide 10-12: US Fish & Wildlife Service (http://www.flickr.com/photos/usfwsnortheast/8151170166/)
•  Slide 18: Paraflyer (http://www.flickr.com/photos/paraflyer/463387468/)
•  Slide 19-20: Nicholas Smale (http://www.flickr.com/photos/nicholassmale/2653055999/)
•  Slide 21-24: Chris Campbell (http://www.flickr.com/photos/cgc/5259321/)
•  Slide 25-26: Library of Congress (http://www.flickr.com/photos/library_of_congress/2179061201/)
•  Slide 27: Keith Williamson (http://www.flickr.com/photos/elwillo/6452275823/)
•  Slide 28: AJC1 (http://www.flickr.com/photos/ajc1/3367295141/)

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No Dialtone: The End of the Public Switched Telephone Network

  • 1. Kevin Werbach e Wharton School, Univ. of Pennsylvania werbach@wharton.upenn.edu No Dialtone e End of the Public Switched Telephone Network (full paper available at http://bit.ly/16Ve7re)
  • 2. e PSTN “Any common carrier switched network, whether by wire or radio, including local exchange carriers, interexchange carriers, and mobile service providers, that use the North American Numbering Plan in connection with the provision of switched services.” 47 C.F.R. §20.3
  • 3. e PSTN “Any common carrier switched network, whether by wire or radio, including local exchange carriers, interexchange carriers, and mobile service providers, that use the North American Numbering Plan in connection with the provision of switched services.” 47 C.F.R. §20.3
  • 4. e PSTN “Any common carrier switched network, whether by wire or radio, including local exchange carriers, interexchange carriers, and mobile service providers, that use the North American Numbering Plan in connection with the provision of switched services.” 47 C.F.R. §20.3 POTS
  • 6. e PSTN is Dying •  Residential switched access lines –  194 million in 2000 –  101 million 2012 •  % of US Households with POTS –  93% in 2003 –  25% in 2013 •  Why? IP convergence + wireless –  43% of homes wireless-only and 32% served by VOIP by end of 2013
  • 8. •  AT&T Trials Petition (11/7/12) –  No requirement to maintain legacy PSTN networks –  No obligation to interconnect –  Customers can be transitioned to IP-based without permission •  AT&T Infrastructure announcement (same day) –  $14 billion over 3 years to upgrade 75% to U-Verse; the rest served via wireless •  Verizon’s Lowell McAdam (July 2013) –  “[E]very place we have FiOS, we are going to kill the copper. We are going to just take it out of service and we are going to move those services onto FiOS.” –  “[In rural areas,] we are going to cut the copper off there. We are going to do it over wireless.”
  • 9. •  2009 NBP public notice •  TAC initiative •  2011-12 Workshops •  Technology Transitions Task Force •  5/13 public notice on trials
  • 12. What Voice Link is Missing •  Medical alert home monitoring services •  Telecommunications relay service for the deaf and hard of hearing •  Digital Video Recorder (DVR) program guide downloads •  Credit card processing terminals for small businesses •  ATM machines for small businesses •  Home alarm monitoring •  Calling to 900-number (paid) services •  Collect calls •  Calling cards or other dial-around calls •  International dialing (without a supplemental plan)
  • 13. What to Make of is •  e transition is a good (and necessary) thing. •  Unnecessary regulation or financial burdens are bad. But… •  Neither the rationale nor the content of telecom regulation is necessarily tied to a technology. •  Our expectations of the PSTN haven’t diminished.
  • 14. Legacy Silo Legal Structure Data Telephony (Title II) Cable (Title VI) Broadcast (Title III) (also legacy slides – from 2005!)
  • 17. All or Nothing Regulation •  Ad hoc response to VOIP under ancillary authority •  Open Internet Order mess
  • 19. Six Dimensions of the PSTN 1.  a technical architecture 2.  a regulatory arrangement 3.  a business and market structure 4.  universal connectivity 5.  strategic national infrastructure 6.  a social contract
  • 20. 1.  a technical architecture 2.  a regulatory arrangement 3.  a business and market structure 4.  universal connectivity 5.  strategic national infrastructure 6.  a social contract
  • 22. Interconnection •  Distinguish from non-discrimination –  Central issue is universality, not fairness •  Are commercial forces enough? –  Comcast-Level 3, Cogent-Verizon –  Terminating access monopoly –  Port capacity and other variables •  Impact of usage caps and end-user pricing •  FCC data roaming requirement: “commercially reasonable terms,” with dispute resolution (upheld by DC Circuit)
  • 23. Coordination •  47 USC §256(b)(1): “oversight of coordinated network planning by … providers of telecommunications service….” •  Numbering –  Some unresolved technical standards for VOIP interconnection –  Need for PSTN-to-IP number portability database •  Network reliability –  E.g. requirements for battery backup
  • 24. Social Commitments •  Emergency services (E911) •  Universal service •  Disability access •  Data privacy (CPNI) •  Consumer protection (slamming/cramming) •  Law enforcement access (CALEA) •  Etc.
  • 26. Transition Mechanisms •  “No carrier shall discontinue, reduce, or impair service … unless and until there shall first have been obtained from the Commission a certificate that neither the present nor future public convenience and necessity will be adversely affected thereby.” 47 USC §214(a)(3) •  Cutting the Gordian Knot of Internet regulation •  Requirements for 214 approval –  Interconnection on commercially reasonable terms, subject to arbitration and disclosure requirements. –  Participate in coordination mechanisms for PSTN-to-IP numbering integration and network reliability. –  Continue to meet social obligations.
  • 27. Date Certain •  Analogy to DTV transition –  Most proposals suggest 2017 or 2018 •  Date certain for what exactly? –  AT&T’s view: When TDM interconnection rights end •  My proposal: carriers meeting interconnection, coordination, social contract obligations freed from legacy requirements at that point •  Trials and troubleshooting for implementation surely will be required
  • 28. I have to hang up now… Full paper available at http://bit.ly/16Ve7re werbach@wharton.upenn.edu Twitter: @kwerb
  • 29. Photo Credits •  Slide 1: Iraxmas (http://www.flickr.com/photos/iraxmas/390798973/) •  Slide 2-4: Science Museum London (http://www.flickr.com/photos/sciencemuseum/7642672140/) •  Slide 6-7: Kim Seng (http://www.flickr.com/photos/captainkimo/8717789122/) •  Slide 10-12: US Fish & Wildlife Service (http://www.flickr.com/photos/usfwsnortheast/8151170166/) •  Slide 18: Paraflyer (http://www.flickr.com/photos/paraflyer/463387468/) •  Slide 19-20: Nicholas Smale (http://www.flickr.com/photos/nicholassmale/2653055999/) •  Slide 21-24: Chris Campbell (http://www.flickr.com/photos/cgc/5259321/) •  Slide 25-26: Library of Congress (http://www.flickr.com/photos/library_of_congress/2179061201/) •  Slide 27: Keith Williamson (http://www.flickr.com/photos/elwillo/6452275823/) •  Slide 28: AJC1 (http://www.flickr.com/photos/ajc1/3367295141/)