Part 68 :: CPE
Customer Premises Equipment (CPE) is the stuff at the end of the telephone network that is attached to the network. It could be a modem or it could be as simple as a plastic scoop used to help make telephone conversations private.
Prior to the proceedings discussed on this page, Ma Bell blocked anyone from attaching anything to its network. Recall historically that Ma Bell started with Alexander Graham Bell's patent of CPE, the telephone, and not a patent for a telephone network or service. Ma Bell's business plan was to sell end-to-end service; Ma Bell would argue that "foreign" devices would harm the network (but then turn around and market the same device at a significantly increased price). Attach a plastic cup to a phone to have a private conversation - AT&T argued that would harm the network. Attach an electronic accoustic coupler to the network so that you could talk to cowboys out riding horses on the ranch - that would harm the network. The argument became so absurd that even if you attached a cover to a phone book - AT&T claimed that would harm the network. [Alven] [Johnson 685 ("A tariff that prohibited a "device" from being "attached" to any of the "facilities furnished by the telephone company" could be interpreted to forbid the use of a plastic book cover on a heavily used phone book-and was so interpreted in North Carolina before being overturned by that state's supreme court.")] [Strassburg]
There are two important regulatory evolutions with regard to CPE:
- The ability of an individual to attach the CPE of their choice to the network; and
- Restrictions on the telephone company bundling the sale of CPE with the sale of telecom service as set forth in Computer Inquiry II. This rule has subsequently been eliminated.
On broadband Internet networks, the ability of the end users to attach the device of their choice to the network is defined by the FCC's Open Internet rules.
A new regulatory issue has recently emerged in the context of Network Neutrality concerning whether subscribers, particularly wireless subscribers, can attach the CPE of their choice to wireless telecommunications networks. Reportedly, in the United States carriers lock their systems so that only their handsets can be used where in Europe subscribers simply need to switch SIM cards in order to switch handsets - and therefore the handset market is far more competitive. SKYPE has petitioned the FCC to apply Part 68 to wireless networks.
Hush a Phone
The Hush a Phone was a scoop like thing that was attached to a telephone handset so that the speaker could talk softly into the phone and not be heard by others. It was a non electric attachment. Hush a phone had been in business since 1920. [Hush a Phone ad] [Picture of a Hush a Phone] [Johnson 688]
In the late 1940s, an AT&T lawyer saw the Hush a Phone in a store window, and decided to sue. AT&T, through its tariffs, refused to allow anyone to attach anything to their network without their permission. AT&T brought suit before the FCC, which agreed that the Hush a Phone posed a technical interference with the network. [Johnson 688 ("The phone company and FCC argued that the device would impair intelligibility by intensifying frequencies below 500 cycles in ways that could, at some point, create distortion or a blasting effect in the mouthpiece transmitter.")] [Huber (referring to this as probably the Commission's "most comical order")]
Hush-a-Phone decided to take a then-unusual step, and appeal the FCC decision to DC Circuit Court. The court reversed the FCC, stating that AT&T's restrictive tariffs were an "unwarranted interference with the telephone subscriber's right reasonably to use his telephone in ways which are privately beneficial without being publicly detrimental." [Hush a Phone v FCC, 238 F2d 266 (1956)] [Johnson 688]
While Hush-a-Phone won, all that was permitted at this point was the attachment of non-electric devices.Hush a Phone Corporation v US, 238 F.2d 266 (DC Cir. 1956): "The question, in the final analysis, is whether the Commission possesses enough control over the subscriber's use of his telephone to authorize the telephone company to prevent him from conversing in comparatively low and distorted tones. It would seem that, although the Commission has no such control in general, there is asserted a right to prevent the subscriber from achieving such tones by the aid of a device other than his own body. Thus, intervenors do not challenge the subscriber's right to seek privacy. They say only that he should achieve it by cupping his hand between the transmitter and his mouth and speaking in a low voice into this makeshift muffler. This substitute, we note, is not less likely to impair intelligibility than the Hush-A-Phone itself, for the Commission has found that 'whenever an enclosure is placed around the mouth of a person an intensification of frequencies below approximately 500 cycles occurs, and if the intensification is too great, a distortion or blasting effect results in the transmitter.' In both instances, the party at the other end of the line hears a comparatively muted and distorted tone because the subscriber has chosen to use his telephone in a way that minimizes the risk of being overheard. In neither case is anyone other than the two parties to the conversation affected. To say that a telephone subscriber may produce the result in question by cupping his hand and speaking into it, but may not do so by using a device which leaves his hand free to write or do whatever else he wishes, is neither just nor reasonable. The intervenors' tariffs, under the Commission's decision, are in unwarranted interference with the telephone subscriber's right reasonably to use his telephone in ways which are privately beneficial without being publicly detrimental. Prescribing what changes should be made in the tariffs to render them 'just, fair, and reasonable' and determining what orders may be required to prohibit violation of subscribers' rights thereunder are functions entrusted to the Commission."
Derived From: From Jason Oxman, FCC Working Paper 31: The FCC and the Unregulation of the Internet Text | Word97 | Adobe | Press Release | July 1999
At about the same time the Commission launched its first Computer Inquiry, it released a short order addressing the complaint of Thomas F. Carter and his company, the Carter Electronics Corporation, against AT&T. [Carterfone] In 1959, Carter invented a device, which he named for himself, that permitted users of mobile radio systems to interconnect their landline telephone with the radio system to permit mobile and fixed users to communicate with each other. [Picture of a Carterfone] Consider, for example, the ability to use a Carterfone to link a marine radio to the telephone line, allowing someone on a boat to talk to someone on a telephone. [Johnson 686 ("Tom Carter's challenge involved the question of how to place and receive phone calls while riding his horse or otherwise getting about on his cattle ranch when the phone was back in the ranch house.")] [Strassburg 5 (there were other modem companies at that time, but they sold to the government and the military)]
AT&T advised its customers that the Carterfone , if used in conjunction with an AT&T telephone, would subject the end user to penalties pursuant to AT&T's FCC tariff number 132, which provided that:
No equipment, apparatus, circuit or device not furnished by the telephone company shall be attached to or connected with the facilities furnished by the telephone company, whether physically, by induction or otherwise ....
[Strassburg 4-5 ("the administrative hearing and the time and the cost involved that, to a small entrepreneur with a piece of equipment, it discouraged people. It discouraged the market from developing, and that's why, I think, the United States was so far behind other countries, because, in terms of customer premise equipment, simply because there was no entrepreneurship out there, the entrepreneurship was blunted and discouraged by this institutionalized practice of saying: "You can't connect with us."")] [Ismail 13]
Carter filed a private antitrust suit against AT&T, and the District Court referred the matter in 1966 to the FCC. [Strassburg 6] [Johnson 683 (Carter sold off his Texas cattle ranch to pay for lawyers during the AT&T litigation)]
Before the FCC, AT&T again failed to demonstrate how competitive CPE would harm the network. The Commission concluded that AT&T's tariff was unreasonable and discriminatory and ordered the restrictive tariff provisions stricken. [1968 Order] The Commission was troubled by the tariff provision that would have permitted end users to install AT&T-manufactured equipment with exactly the same functionality offered by the Carterfone, but not the Carterfone itself. The Commission determined that a customer desiring to improve the functionality of the telephone network by interconnecting a piece of equipment not manufactured by the phone company should be permitted to do so, so long as that equipment does not harm the network. [Strassburg 7 ("there was sufficient evidence to demonstrate that the tariff was inherently unsound and should be declared unlawful, as unjust and unreasonable")] The Commission also rejected AT&T's arguments that opening the network to competitive CPE would have adverse economic impact on AT&T's telephone service. [Strassburg 5 (AT&T responded to Carterfone with the Protective Connecting Arrangement)] [Strassburg 8 (Carter "didn't get much out of the settlement.")]
FCC Commissioner Nicholas Johnson who wrote the Carterfone decision: "One of my many jobs as a teenager was that of a watchman and cleaning person at the local gas and electric company's downtown office in Iowa City... What I remembered from that experience... was that the utility did not feel a necessity to manufacture, own, and sell to its customers everything that plugged into the electric grid. If an electric company could figure out a way to do that, with all the risks of electricity causing shocks, fires, and possibly blowing out a company transformer, I did not see why the phone company could not do the same with an acoustic coupler. There was a little more to my analysis, I suppose, but that was the heart of it." [Johnson 695]
As stated by Huber, Kellogg, and Thorne, "Unvarnished claims of threatened harm to the network would no longer suffice;" from here out, AT&T would have to demonstrate specific harm to prohibit competitive CPE. [Strassburg 9 ("AT&T wasn't going to be able to stand still with its traditional practices. They were going to have to make the network more accessible and flexibly adaptable to things other than voice communication")]
Use of the Carterfone Device in Message Toll Telephone Service; Thomas F. Carter and Carter Electronics Corp., Dallas, Tex. (Complainants), v. American Telephone and Telegraph Co., Associated Bell System Companies, Southwestern Bell Telephone Co., and General Telephone Co. of the Southwest (Defendants), Docket Nos. 16942, 17073, Decision, 13 FCC 2d 420 (1968) (Carterfone), recon. denied, 14 FCC 2d 571 (1968).
Notice that the Computer I Inquiry was happening at the same time. The two proceedings, and the comments filed in them, influenced the outcome of each proceeding. [Strassburg 7]
Obituaries, Thomas Carter,67, Who Beat A. T.& T In Lawsuit,Is Dead, N.Y. TIMES, Feb. 26, 1991.
“Today, the benefits of competition in the CPE market are tangible. Consumers can buy telephones of all shapes, sizes and colors with a bewildering array of features and functions. They can buy telephones with built-in answering machines, telephones with memory, telephones with speed dialing, and cordless telephones.”
“Since deregulation, prices for this equipment have fallen, and as prices declined, sales increased. Sales of cordless telephones, for example, increased from approximately 4 million units in 1985 to 9 million units in 1992.” - Reed E. Hundt, Statement, Committee on Commerce, Science, and Transp., U.S Senate, February 23, 1994.
The principle of consumer usage of non-telephone company manufactured equipment with the public switched telephone network, outlined by the Commission in Carterfone, would later be codified as Part 68 of the FCC's rules. In restraining the boundaries of AT&T market power and opening the network to competition, the FCC believed that it was advancing the public interest.[W]e find the interconnect competitive marketplace has been characterized by innovation on the part of both interconnect and telephone companies, thereby affording the public a wide range of choices regarding the terminal device or private communications system which best serves their needs. Benefits include availability of new equipment features, improved maintenance, and reliability, improved installation features including ease of making changes, competitive sources of supply, option of leasing or owning, and competitive pricing and payment options. Although it is difficult to predict future innovative developments, because so much is dependent on new product lines and new marketing strategies adopted by the telephone carriers in response to competition, it appears likely that the public will continue to benefit from the competitive interconnect marketplace in terms of innovation in the immediate future [1976 Report para 246]
Part 68 was first adopted in 1975 as part of the Commission's WATS rulemaking, [WATS] in response to telephone company slowness in modifying tariffs to permit consumers to attach their own equipment to the public network. Part 68, which addresses connection of terminal equipment to the public telephone network, permits consumers to connect equipment from any source to the public network if such equipment fits within the technical parameters outlined in Part 68. Competitive manufacturers of equipment were able, by means of the Commission's equipment registration and certification procedures, to build and deploy an incredible variety of voice and data equipment for use with the public network, without seeking prior permission from either the Commission, or more importantly, the monopoly telephone companies.
Through Carterfone and Part 68, the Commission opened the door to manufacturers of devices that interconnected with the telephone network and offered value-added services and capabilities. Most important for the growth and development of the Internet, the Commission's deregulation of customer premises equipment, or CPE, cleared the way for the rapid deployment of the modem. The modem allows any consumer with a computer and a telephone line to access data services, requiring no network alterations by the telephone company. Residential modem use, in turn, has driven the growth of Internet applications as consumer use of the Internet has increased. In fact, without Part 68, users of the public switched network would not have been able to connect their computers and modems to the network, and it is likely that the Internet would have been unable to develop. [See Wu p 9]
As the application of Moore's law to computer processing speeds witnessed an exponential growth in computing capabilities, the modem followed suit. Analog modem speeds rose from 300 baud to 28.8 kilobits/second, and then to today's nearly standard 56 kilobits / second. Digital modems and codecs, using such technologies as digital subscriber line (DSL), promise multiple increases in speed that will create demand for even more innovative Internet-based resources and tools. As a result, consumers will continue to be exposed to an endless variety of Internet-based applications that meet their increased bandwidth capabilities.
The Carterfone decision enabled consumers to purchase modems from countless sources, to install and use the modem without permission from the telephone company, and to use these modems to take advantage of an array of data services offered by a diverse assortment of service providers over their home telephone service. Without easy and inexpensive consumer access to modems, the Internet would not have become the global medium that it is today.
The Marconi company refused to communicate with radio stations that were not outfitted with Marconi equipment. This resulted in the US Navy Department, then in charge of US radio communications, to adopt a policy against permitting installations of radio stations that refused such interconnection.
"Early in 1902 an incident occurred which caused the German Government to take official cognizance of the situation. Prince Henry of Prussia, brother of the German Kaiser, was returning to Germany, in the S.S. Deutschland , after a visit to the United States. Soon after sailing, he desired to send President Roosevelt a radio message thanking him for the numerous honors and courtesies which had been accorded him. The Deutschland transmitted this message to the Marconi station at Nantucket, but that station refused to accept it because the ship was fitted with Slaby-Arco radio equipment. The irate Prince brought the matter to the attention of his brother. Kaiser Wilhelm thereupon instructed his government to initiate action in an attempt to establish international control over radio communications. [Howeth] The US Navy, with jurisdiction over American radio at that time, adopted the policy of preventing the installation of radio stations which would block the receipt of messages.
See Early Radio History.
- 47 USF s 153(14) Definition: "The term “customer premises equipment” means equipment employed on the premises of a person (other than a carrier) to originate, route, or terminate telecommunications."
- Taken from Modification of Final Judgment§ IV(E), reprinted in United States v. AT&T, 552 FSupp 131, 228 (DDC 1982) (CPE is "equipment employed on the premises of a person (other than a carrier) to originate, route, or terminate telecommunications, but [it] does not include equipment used to multiplex, maintain, or terminate access lines.")
- 47 CFR Part 68
AT&T / APPLE / Google
- Please provide answers to the following questions by close of business on Friday, August 21, 2009.
- APPLE'S REJECTION OF THE GOOGLE VOICE FOR IPHONE APPLICATION. Letter to AT&T concerning Apple's rejection of the Google Voice for iPhone Application. Action by: Acting Chief, Wireless Telecommunications Bureau by LETTER. (DA No. 09-1737). WTB TXT
- APPLE'S REJECTION OF THE GOOGLE VOICE FOR IPHONE APPLICATION. Letter to Google concerning Apple's rejection of the Google Voice for iPhone Application. Action by: Acting Chief, Wireless Telecommunications Bureau by LETTER. (DA No. 09-1739). WTB TXT
- LETTER TO APPLE REGARDING GOOGLE VOICE AND RELATED IPHONE APPLICATIONS. Letter to Apple regarding Google Voice and related iPhone applications. Action by: Acting Chief, Wireless Telecommunications Bureau by LETTER. (DA No. 09-1736). WTB TXT
Catherine A. Novelli, Vice President
Worldwide Government Affairs
901 15th Street, NW, Suite 1000
Washington, DC 20005
RE: Google Voice and related iPhone applications
Dear Ms. Novelli:
Recent press reports indicate that Apple has declined to approve the Google Voice application for the iPhone and has removed related (and previously approved) third-party applications from the iPhone App Store . In light of pending FCC proceedings regarding wireless open access (RM-11361) and handset exclusivity (RM-11497), we are interested in a more complete understanding of this situation.
- Why did Apple reject the Google Voice application for iPhone and remove related third-party applications from its App Store? In addition to Google Voice, which related third-party applications were removed or have been rejected? Please provide the specific name of each application and the contact information for the developer.
- Did Apple act alone, or in consultation with AT&T, in deciding to reject the Google Voice application and related applications? If the latter, please describe the communications between Apple and AT&T in connection with the decision to reject Google Voice. Are there any contractual conditions or non-contractual understandings with AT&T that affected Apple's decision in this matter?
- Does AT&T have any role in the approval of iPhone applications generally (or in certain cases)? If so, under what circumstances, and what role does it play? What roles are specified in the contractual provisions between Apple and AT&T (or any non-contractual understandings) regarding the consideration of particular iPhone applications?
- Please explain any differences between the Google Voice iPhone application and any Voice over Internet Protocol (VoIP) applications that Apple has approved for the iPhone. Are any of the approved VoIP applications allowed to operate on AT&T's 3G network?
- What other applications have been rejected for use on the iPhone and for what reasons? Is there a list of prohibited applications or of categories of applications that is provided to potential vendors/developers? If so, is this posted on the iTunes website or otherwise disclosed to consumers?
- What are the standards for considering and approving iPhone applications? What is the approval process for such applications (timing, reasons for rejection, appeal process, etc.)? What is the percentage of applications that are rejected? What are the major reasons for rejecting an application?
Request for Confidential Treatment. If Apple requests that any information or documents responsive to this letter be treated in a confidential manner, it shall submit, along with all responsive information and documents, a statement in accordance with section 0.459 of the Commission's rules. 47 C.F.R. § 0.459. Requests for confidential treatment must comply with the requirements of section 0.459, including the standards of specificity mandated by section 0.459(b). Accordingly, "blanket" requests for confidentiality of a large set of documents are unacceptable. Pursuant to section 0.459(c), the Bureau will not consider requests that do not comply with the requirements of section 0.459.
Thank you in advance for your anticipated cooperation.
James D. Schlichting
Wireless Telecommunications Bureau
Federal Communications Commission
PETITION TO CONFIRM A CONSUMER'S RIGHT TO USE INTERNET COMMUNICATIONS SOFTWARE AND ATTACH DEVICES TO WIRELESS NETWORKS
- PETITION OF SKYPE COMMUNICATIONS S.A.R.L. TO CONFIRM A CONSUMER'S RIGHT TO USE INTERNET COMMUNICATIONS SOFTWARE AND ATTACH DEVICES TO WIRELESS NETWORKS. Granted the request for withdrawal filed by Microsoft. Dismissed Skype's Petition for rulemaking without prejudice and terminated the docket for this proceeding. (Dkt No. RM-11361 ). Action by: Chief, Wireless Telecommunications Bureau. Adopted: 04/16/2015 by ORDER. (DA No. 15-471). WTB
- Skype Petition to apply Part 68 to Wireless Telecom Services Filed Feb. 20, 2007. Comments due April 30; Replies due May 15, 2007
- PETITION TO CONFIRM A CONSUMER'S RIGHT TO USE INTERNET COMMUNICATIONS SOFTWARE AND ATTACH DEVICES TO WIRELESS NETWORKS. Granted the Joint Motion by CTIA - Wireless Association and Skype Communications S.A.R.L. for extension of time. Action by: Chief, Wireless Telecommunications Bureau. Comments Due: 04/30/2007. Reply Comments Due: 05/15/2007. Adopted: 03/14/2007 by ORDER. (DA No. 07-1318). WTB http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-07-1318A1.doc (notice the change of Bureau)
- Report No: 2807 Released: 02/28/2007. CONSUMER & GOVERNMENTAL AFFAIRS BUREAU REFERENCE INFORMATION CENTER PETITION FOR RULEMAKINGS FILED. CGB DOC-270943A1.doc DOC-270943A1.pdf DOC-270943A1.txt (original Skype petition notice, although you would never know it from the title)
- Skype Petition
- Summary: "As the wireless industry matures, consolidation and the relationship between headset manufacturers and carriers are producing market practices that raise substantial questions about whether consumers are receiving the maximum benefits of wireless competition. For example, carriers are beginning aggressively to influence software and product design to the detriment of consumers.
- "As the wireless market has matured and wireless handsets have become an integral part of most American's lives, carriers are using their considerable influence over handset design and usage to maintain control over and limit subscribers' right to run software communications application of their choosing. Instead of carrying the subscribers' messages indifferent to content, carriers have exerted more and more control over the way consumers access the mobile Internet. In an effort to prefer their own affiliated services and exclude rivals, carriers have disabled or crippled consumer-friendly features of mobile devices. Carriers are doing so, moreover, in violation of the Commission's Carterfone principle and the strictures of the Commission's original order permitting the bundling of consumer equipment and wireless service. The Commission should act now to enforce Carterfone and unlock the full benefits of wireless price competition and innovation.
- "In light of these developments, Skype respectfully requests that the Commission make unmistakably clear that Carterfone will be enforced in the wireless industry, to initiate a proceeding to evaluate wireless carrier practices in light of Carterfone, and to create an industry-led mechanism to ensure that openness of wireless networks. Doing so will ensure both that consumers retain a right to run the applications of their choosing and attach all non harmful devices to the wireless network. Finally, Commission involvement will ensure that carriers cannot use illegitimate network management practices as an excuse for otherwise anti-consumer behavior."
- Frieden, Rob, Lock Down on the Third Screen: How Wireless Carriers Evade Regulation of Their Video Services, 23 BERKELEY TECHNOLOGY LAW JOURNAL (2009)
- Frieden, Rob, Hold the Phone: Assessing the Rights of Wireless Handset Owners and Carriers, 69 PITTSBURGH LAW REVIEW, No. 4 (2008) (in production)
- Wireless Carterfone - A Long Overdue Policy Promoting Consumer Choice and Competition, New America Foundation, Wireless Future Program, Working Paper No. 20 (Jan. 2008); available at: .
- Don't Jailbreak Your iPhone Or The World Ends - Apple fights EFF attempt to open up device..., dslreports 7/30/2009
- Apple claims jailbreaking could crash cell towers, Ars Technica 7/30/2009
- Apple Denies Google Voice App for iPhone, Internet News 7/27/2009
- Barbara Esbin: Exclusive Handset Deals Are Pro-Competitive, Tech Lib Front 6/25/2009
- Group urges FCC to open AT&T's 3G to Skype on iPhone, CW 4/7/2009
- FCC Pressed To Defend Wireless Open Internet, Consumer Affairs 4/7/2009
- CTIA drops lawsuit against FCC's open access rules, CW 11/13/2008
- Carterfone and Open Access in the Digital Era Symposium, October 17, Tech & Marketing Law 9/24/2008
- Skype Gripes About Closed Wireless Networks - Says last week's comments by execs just empty lip service, dslreports 9/16/2008
- CTIA: FCC chair vows to quash Skype open-access petition, CW 4/8/2008
- CTIA: FCC Chairman Hails Openness in Wireless Industry, Internet News 4/3/2008
- Cut and Run, PK 4/3/2008
- Kevin Martin's Latest Gift To Telcos: Dismissing Skype Petition, Techdirt 4/3/2008
- FCC Not Ready to Pry Open Wireless Networks, Consumer Affairs 1/24/2008
- FCC official: No need to mandate 'open' mobile networks... yet, CNET 1/22/2008
- FCC Faces Wireless, Internet "Neutrality" Demands, CommLaw 2/4/2008
- Wireless Net Neutrality, CircleID 9/18/2007
- Oh yeah, the Skype Petition . . ., Tales from the Sausage Factory 5/1/2007
- Skype petitions FCC for open cellular access, CNET 2/23/2007
- A Call To Let Your Phone Loose, Wash Post 2/9/2007
- Skype calls on FCC to open network access, ZDNET Feb 23, 2007
- Skype files FCC petition to open up cellular nets, EETimes Feb 21, 2007
Other Govt Activity
- Statement of Reed E. Hundt Chairman Federal Communications Commission Before the Committee on Commerce, Science, and Transportation United States Senate on S. 1822, the "Communications Act of 1994" and "Telecommunications Equipment Research and Manufacturing Competition Act of 1994" February 23, 1994
- NPR: Engines of our Ingenuity: Breaking the Monopoly: Hush a Phone
- Michael T. Hoeker, Comment, From Carterfone to the iPhone: Consumer Choice in the Wireless Telecommunications Marketplace, 17 CommLaw Conspectus 187 (2008)
- Sherille Ismail, Transformative Choices: A Review of 70 Years of FCC Decisions, FCC Working Paper Series #1 (Oct. 2010)
- Nicholas Johnson, Carterfone: My Story, Santa Clara Tech. L.J. Vol. 25. Iss. 3, p. 677 (2008)
- Ken Krechmer, A.W. Morten and H.E. Vaughan, Transmission of Digital Information over Telephone Circuits, May 1955
- Eli M Noam, The Next Frontier for Openness: Wireless Communications (TPRC 2001)
- Timothy Wu, Wireless Net Neutrality: Cellular Carterfone and Consumer Choice in Mobile Broadband, New American Foundation Feb. 15, 2007 Full Article PDF "The Carterfone principle has had enormous consequences not only in telecommunications policy, but for the economic prosperity of the United States. The ability to build a device to a standardized network interface (the phone plug, known as an RJ-11) gave birth to a new market in home and business telecommunications equipment. That led, predictably, to competition in the phone market. But it also led, unpredictably, to other innovations. Those have included mass consumer versions of the fax machine, the answering machine, and perhaps most importantly, the modem. Arguably, the FCC's rules on network attachments - now known as the Part 68 rules - have been the most successful in its history. The freedom to buy and attach a modem became the anchor of the mass popularization of the Internet in the 1990s. As one observer put it, without Carterfone, the development and broad popularization of the Internet also would not have occurred as it did. The key point of Carterfone is that it eliminated an innovation bottleneck in the form of the phone company". - page 9.
- William von Alven (former Manager, FCC Part 68 Operations) Bill's 200-Year Condensed History of Telecommunications
- Competition in the Telephone Equipment Industry: Beyond Telernet, 86 Yale LJ 536 (1977)
- 1958 AT&T introduces the first commercial modem. [AT&T: History: Milestones] [Picture of AT&T modem 1958].
- 1977 Dennis Hayes invents PC Modem
- Bring On The Hush-A-Phone!, Technovelgy
- Matthew Lasar, Any lawful device: 40 years after the Carterfone decision, ARS TECHNICA, June 26, 2008, http://arstechnica.com/articles/culture/carterfone-40-years.