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VON

Recently the VON (Voice on the Network) conference was here in Boston. This remarkable event, hosted by Jeff Pulver, has grown considerably over the years. This year it drew over 5,000 attendees and 200 exhibitors, filling two floors of the Hynes Convention Center.

It’s interesting to chart how the mood of VON has evolved. In the early years, VON drew a handful of digital hipsters who could see the potential of carrying voice and data on a converged network, along with a brave few companies who hoped to make money on it, mostly by building gateways that connected a PBX to the Internet to enable cheap long distance. Then, as the Internet took hold in the popular imagination, VON was filled with revolutionaries who were convinced they would topple the telcos-that-be. Many of those telcos (think AT&T) suffered, but so did everyone else when the bubble burst. (Worldcom, anyone.) Now the barbarians are firmly within the gates. Even such establishment figures as the chairman of the FCC, Michael Powell, who gave the keynote this year, are celebrating the revolution.

Still, it will be difficult to find the right level of integration. Powell, in his speech, talked about how VoIP will enable a new generation of creative applications and if that disrupts the status quo, so be it. He came out firmly for what David Reed has called the End to End Principle – that the network should get out of the way and thus enable creativity at the edges. Powell listed four Internet Consumer Freedoms:

(1) Freedom to Access Content: Consumers should have access to their choice of legal content;

(2) Freedom to Use Applications: Consumers should be able to run applications of their choice;

(3) Freedom to Attach Personal Devices: Consumers should be permitted to attach any devices they choose to the connection in their homes; and

(4) Freedom to Obtain Service Plan Information: Consumers should receive meaningful information regarding their service plans.

This is a significant departure from the Terms of Service of many of the major Internet Providers, which often prohibit operating a server, as if anyone could define server in an age of peer-to-peer games and file sharing.

Still, Powell had trouble saying just how his agency would guarantee these freedoms, While he did say that the FCC would “affirmatively establish jurisdiction over these services” during the Q&A he said that until there was evidence of a problem he was reluctant to step in. As he said, it is comparatively easy to establish regulations, but very difficult to remove them.

For a detailed description, Andy Oram has an excellent article on the conference on the O’Reilly Network.

WiFi on Newbury Street

Newburystreet
One of the many attractions of Newbury Street in Boston is free WiFi.
Here is me on the way home from the VON conference, engaging in an ASAP video conference from my car. Contrary to appearances, I was safely parked at the time.

Headsets & Handsets

Voice and video over IP are great, but what do you do when you don't want every word broadcast around the office? There are basically three choices:

1. Headsets which plug directly into the PC.
2. Headsets which are intended for cell phones but can be connected to a PC via an adaptor.
3. Handsets.

Connecting to a PC

Headsets usually connect to the analog audio connectors on the PC. It is also possible to use the USB port - we'll hear more about that later when we talk about handsets.

Headsets designed for PCs have two 3.5 mm (1/8") "stereo" plugs that connect to the corresponding jacks on the PC. In most cases the plugs and jacks are marked in conformance with the PC 99 System Design Guide which specifies that the microphone connector is pink and the headphone connector is green. There are also little icons of a microphone and headphone that are cute but almost impossible to see when you are poking around in the dark under your desk.

If you look closely at the plugs, you will see that they have three metal conductors separated by iinsulators. For the headphones, this arrangement provides for separate signals to each ear, hence "stereo." But why are there three conductors for the microphone plug? That's to provide power to the preamp for the electret microphone in most headsets. Why am I telling you all this? Because if you want to connect a mobile phone headset (one 2.5 mm 3-conductor plug) to a PC (two 3.5 mm 3-conductor plugs) you will need an adaptor that does more than just change the diameter of the connectors.

Next: PC Headsets

Writing again

This blog began as an engineering experiment to see how our forthcoming links feature worked in various blog authoring environments, but recently it has come to my attention that people are reading this blog and want to know when more is coming.

Since returning from vacation, I've been busy with our 2.0 product and some things to come after that, but I do plan to start publishing regularly here again.

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