Graves On SOHO Technology

Last week I received a question via email from reader Marshall Wilgard. It seems that he is having trouble with a Grandstream BT-200 desk phone.

For five years, I used a Grandstream BT-200 IP phone without any problems.  Six weeks ago, a loud hum appeared on the phone as soon as I picked up the handset.  About 10 days later, the hum vanished, for no apparent reason.  However, about 10 days after that, the hum came back, for no apparent reason.  Despite my rebooting the phone three times, the hum remained.  Then approximately 10 days after the hum returned, it vanished again, for no apparent reason.  My phone has had the latest firmware for more than a year, and my VoIP provider says the problem is not with it.

Hum like Marshal describes is usually an analog phenomenon, not something that I’d associate with firmware. It sounds to me like a problem with the hardware. Issues of hum tend to revolve around a problem with the power supply. Given the age of this phone I’d guess that most likely some kind of capacitor is failing.

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This week saw an announcement about the release of Ekiga v4.0. This is the most significant release of the venerable open source soft phone in some time. It brings with it many improvements.

I’m especially interested in the following new capabilities:

• New audio codecs: SILK (used by skype), G.722.1 (aka Siren 7), G.722.2 (aka GSM-AMR Wide band)
• Video codecs changes: H.264 optimizations
• Added RTP TOS support
• Support for DNS SRV caching

While developed primarily on Linux Ekiga has long supported multiple platforms. I took a short while today to try the new release on an older Windows XP laptop. The Windows installer also installed the GTK libraries necessary to support the application. Installation was quick and painless.

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Ok, you’re here, so that makes you something of a geek. Perhaps you have another telephony geek in your life, or your family are asking for a Christmas list. Whatever the case, a good USB speakerphone is really handy and makes nice present.

I’ve used a number of these things over the years. For the past few months I’ve had a Jabra SPEAK 410 on the corner of my desk.

Little round-and-loud has proven to be a solid performer. I’ve used it to participate in Google Hangouts, with Skype and GotoMeeting as well as various SIP soft phones. You might have seen me show it in a recent VUC call with Logitech. Whatever the client software, in every case it worked well. It sounds great to my ear and conveys my voice clearly to the far end.

The microphone is omni-directional, effective to about one yard. That makes the SPEAK 410 ideal for desk use, even if you have a person on either side of the desk.

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This past week I’ve been travelling with a new Plantronics Voyager Legend Bluetooth headset. This is the fourth headset in the Voyager range that I’ve used. You may recall that not so long ago I bought a Voyager Pro HD. That headset has been completely satisfactory. I was not intending to purchase a replacement. So it is that I’ll start by describing how I came to have this little beasty, which is a bit of a curious story and the tale of my first Tweet-Up, aka Twitter Party.

Back in October my wife took a business trip to Anaheim CA for a few days. This was something of a turning of the tables for I am the frequent business traveller in the family. She rarely travels on business.

It was decided (i.e. I was told) that since she had to be away I would need to be taking care of things at home that week. I found myself tending the homestead without some of the normal distractions of our daily life. I had some extra time to tinker for a few evenings.

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WebRTC is certainly a hot topic in some circles and definitely something to watch. Recently Erik Lagerway of Hookflash interviewed Alan Johnston of Avaya on the matter. They both share a lot of enthusiasm for WebRTC and the potential that it represents.

Mr. Johnston has written a book on WebRTC, which is mentioned on his blog. He’s giving away 10 copies. You have until the end of the day to get yourself entered via Good Reads.

Thanks to Chris Mathieu for pointing this out via Twitter.

This morning Daily Steals is offering the Plantronics Voyager Pro HD for a mere $29.95. That’s not bad for an HDVoice capable Bluetooth headset. It’s lists at $99 while I bought one a few months ago for the more common street price of $59.95.

I’ve used the Voyager Pro HD with my netbook, desktop, Nexus 7 tablet and Galaxy Nexus cell phone. It worked well with every device and handles wideband audio if the other ends also supports HDVoice.

In the past I’ve used the Voyager Pro HD with a Polycom VVX-500 desk phone. This was possible using the optional BT300 USB BT dongle from Plantronics. This worked well, but of course adds cost to the overall solution.

More recently I have used the Voyager Pro HD with the new Polycom VVX-600, which has a built in BT radio. In both cases the Voyager Pro HD provided long battery life, HDVoice and hook switch control.