More on Wireless Carterfone

by on May 29, 2007 · 2 comments

Tom Coseven left a comment making some good points about last week’s podcast and wireless Carterfone. I also got an email raising some of the same objections, so let me see if I can address them.

First, in response to Tom’s first point, I didn’t mean to give the impression that Carterfone was an antitrust decision. My point was simply that the policy rationale for regulatory intervention is much stronger when you have a single, government-protected monopoly than it is when there are four (relatively) lightly regulated incumbents. Whether or not you want to call them an “oligopoly,” it’s clearly more likely that market competition will discipline network operators in a 4-firm industry than in a 1=firm industry. And on the margin, that makes the case for regulatory intervention weaker.

Here’s Tom again:

On the subject of implementation of an open access requirement, it could be done quite easily. The GSM and CDMA standards allow for very transparent connectivity at the device level with no affect on your visual voice feature you use as an example. Those kind of widgets sit at a higher layer on the phone. Either the phone has the software or it doesn’t (sort of like a downloaded game).

Part of the problem here is that I have yet to see a specific explanation of what a “Wireless Carterfone” rule would actually say. If we’re just talking about a rule that says “network operators must allow any GSM or CDMA (as the case may be) phone to connect to their network,” that’s certainly a pretty clear rule, and it may not lead to any problems. However, I have the impression that two of the four carriers (the GSM ones) already respect this rule. So if that’s all we’re talking about, the rule seems kind of superfluous. Anyone who wants the freedom to attach the phone of their choice can sign up with T-Mobile or AT&T.

However, I have the impression that Wu is talking about something more ambitious than that. One problem is suggested by the visual voicemail example. Right now, visual voicemail is only available as a proprietary feature of iPhones. The question is: if another phone vendor wants to implement visual voicemail on its phones, will a wireless Carterfone rule compel AT&T to open up its visual voicemail APIs to support other phone vendors? If the answer is no, then third-party phones will still be second-class citizens in some sense (although maybe a clever phone vendor will be able to reverse-engineer the VV protocol). If the answer is yes, then the FCC is going to have to get into messy questions about what the API has to look like, how much AT&T is allowed to charge for the service, etc.

At some points, however, Wu hints that what he’s proposing is much more ambitious than a simple “don’t discriminate among GSM phones” rule. For example, he gives the example of a fob that will tell you where your keys are regardless of where they are on the planet. Now, it’s not likely that a consumer is going to want to pay the $30/month it costs for a cell phone plan in order to obtain connectivity for his key fob. Which seems to suggest that under Wu’s plan, the FCC would have to get involved in dictating what kind of data plans the wireless carriers would have to offer and how much they can charge for them.

Now, again, this is all speculation on my part. Maybe I’m misunderstanding Wu and he’s got all these details worked out in a way that I haven’t thought of. But from what I’ve been able to find so far, I’m having trouble seeing how the rule could be as simple as Wu claims.

  • Tom Coseven

    Tim, I share your confusion on over what wireless Carterfone accomplishes. I have a lot of respect for Tim Wu and especially liked his first paper on Net Neutrality. It lacked religion and carefully laid out the economic case for harm that might occur from blocking a class of applications. I had a little problem in that he commingled Carterfone-type blocking (home networks, WLAN’s) with CI II-type blocking (VLAN’s, hosting a server, reselling access). The discussion was evenhanded, admitting that there was rationales for blocking that could provide benefit to all subscribers. For example, greedy applications like spam, viruses and perhaps P2P.

    Having spent numerous hours in the late 90’s trying to convince MSO’s not to block VLAN’s, I can say with certainty that the blocking was an attempt to get enterprises to pay a premium for a telecommuter class of service that was identical to vanilla residential service. I can also say server hosting was a legitimate concern that a few greedy users would consume all of the upstream bandwidth and ruin the quality of experience for everyone.

    With wireless net neutrality, it seems that Tim Wu has got religion. He picked the two worst applications (VoIP and WLAN) to make his case on. The bandwidth of even 3G networks is incredibly constrained and the cell tower backhaul is even more constrained. Unlike the wireline world where exchanging a 56kbps voice circuit for a 16kbps VoIP call actually adds economy, in wireless you are exchanging 4kbps circuit for a 16kbps session. It gets worse. The inherent inefficiencies of GPRS and 3G, as well as the overhead of Skype make the efficiency loss about 7:1. Everything the carriers say about WLAN on cell phones being unreliable is true. It is a nightmare to support.

    On the other hand, the mobile operators are always trying to lock users into poor quality captive services. I have seen dozens of RFP’s for walled garden services, and contrary to Tim Wu’s assertion, the US MO’s are among the most open when it comes to allowing independent 3rd party services (DoCoMo is the worst followed by the Italian MO’s). Besides the FCC mandating that Sprint and Verizon allow open attachment of 3rd party CDMA phones, I’m not sure what other good you could accomplish. The reference to wireless “Carterfone” is completely inappropriate… there is no tariff to invalidate.

    I think there is a future risk that the mobile operators will try to use their dominance in CMRS to gain dominance in the mobile television market. This is almost certain to happen with DVB in Europe. But the US broadcasters are far more aggressive. If Sinclair and others can pull off open A-VSB, a market solution will work EXTREMELY WELL. If not, we are going to probably need regulation.

  • Tom Coseven

    Tim, I share your confusion on over what wireless Carterfone accomplishes. I have a lot of respect for Tim Wu and especially liked his first paper on Net Neutrality. It lacked religion and carefully laid out the economic case for harm that might occur from blocking a class of applications. I had a little problem in that he commingled Carterfone-type blocking (home networks, WLAN’s) with CI II-type blocking (VLAN’s, hosting a server, reselling access). The discussion was evenhanded, admitting that there was rationales for blocking that could provide benefit to all subscribers. For example, greedy applications like spam, viruses and perhaps P2P.

    Having spent numerous hours in the late 90’s trying to convince MSO’s not to block VLAN’s, I can say with certainty that the blocking was an attempt to get enterprises to pay a premium for a telecommuter class of service that was identical to vanilla residential service. I can also say server hosting was a legitimate concern that a few greedy users would consume all of the upstream bandwidth and ruin the quality of experience for everyone.

    With wireless net neutrality, it seems that Tim Wu has got religion. He picked the two worst applications (VoIP and WLAN) to make his case on. The bandwidth of even 3G networks is incredibly constrained and the cell tower backhaul is even more constrained. Unlike the wireline world where exchanging a 56kbps voice circuit for a 16kbps VoIP call actually adds economy, in wireless you are exchanging 4kbps circuit for a 16kbps session. It gets worse. The inherent inefficiencies of GPRS and 3G, as well as the overhead of Skype make the efficiency loss about 7:1. Everything the carriers say about WLAN on cell phones being unreliable is true. It is a nightmare to support.

    On the other hand, the mobile operators are always trying to lock users into poor quality captive services. I have seen dozens of RFP’s for walled garden services, and contrary to Tim Wu’s assertion, the US MO’s are among the most open when it comes to allowing independent 3rd party services (DoCoMo is the worst followed by the Italian MO’s). Besides the FCC mandating that Sprint and Verizon allow open attachment of 3rd party CDMA phones, I’m not sure what other good you could accomplish. The reference to wireless “Carterfone” is completely inappropriate… there is no tariff to invalidate.

    I think there is a future risk that the mobile operators will try to use their dominance in CMRS to gain dominance in the mobile television market. This is almost certain to happen with DVB in Europe. But the US broadcasters are far more aggressive. If Sinclair and others can pull off open A-VSB, a market solution will work EXTREMELY WELL. If not, we are going to probably need regulation.

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