Here’s yet another case of the telecom punditry failing to live by their own guidance. What’s the common term? “Eating one’s own dog food.”
No Jitter, a UBM property, in support of their Enterprise Connect event, produces a podcast. This time around editor Beth Schultz spoke with Alan Quayle about the coming TADHack Mini Hackathon which will run in Orlando March 25-6, just before Enterprise Connect.
That’s nice. Alan certainly knows his stuff. He’s been a VUC frequent guest in recent years.
It’s a pity that the podcast was produced via a plain vanilla PSTN telephone call. Narrowband in the best tradition of Ma Bell, circa 1945.
The failure to tap a new age, HDVoice-capable means of podcast production just feels wrong. Most especially given the widespread emphasis on WebRTC as a key aspect of the new age of telecom creativity.
Continue reading “No Jitter: Still No HDVoice Either!”
While I recently lamented the last UC Strategies podcast woefully narrowband presentation, in the interest of fairness I must today point out that they are not alone in this. Today the latest No Jitter Podcast, hosted by Guy Clinch, published an interview with Andrew Prokop of Arrow S3. It suffers a similar lack of lack of regard for HDVoice.
Mr Prokop’s SIP Adventures blog has proven interesting, so I thought the podcast worth a listen. Sadly, while the host is presented full bandwidth, as might be expected from a local recording, the guest is presented in narrowband. Given that the subject matter is WebRTC I think that this is more than a little anachronistic. WebRTC-based services are in fact a very easy way to enjoy wideband audio for the purposes of producing a podcast.
Dragging the podcast in my trusty editor I find it to the a definitive example of full-band audio vs narrowband. The file is sampled at 44.1 kHz, so the top of the vertical axis is 22 kHz. The guests audio is a good quality PSTN call, but even that is quite a contrast from the host. This contrast is very jarring to the listener.
Continue reading “No Jitter: No HDVoice Either!”
Earlier this week Matt Brunk penned a post over at CMP’s No Jitter blog entitled “SIP Means Change.” It’s a short piece detailing the contrast between SIP phones, Asterisk servers and legacy proprietary equipment. In particular it dwells on the boot times of the various items. He highlights how anything that takes longer, even just a little longer, ultimately has a higher cost.
Matt points out that the older, proprietary digital phones were effectively instant-on devices compared to SIP phones. This is a little obtuse in that SIP isn’t really the culprit. It’s just a protocol. Cisco phones running SCCP would have similar boot times to SIP handsets. I presume that Nortel phones running UNISTIM would also have similar boot times.
Continue reading “No Jitter’s Matt Brunk: SIP Means Change”
Sorell Slaymaker of Unified IT Systems he penned an interesting post over at CMPs No Jitter blog. The post starts out as follows:
After architecting a 50,000+ seat IP Telephony system and seeing it through rollout, this is what I would recommend to do different.
Wow! That’s huge. Got my attention right away! He goes on to give a list of brief but really meaningful points about various considerations in any significant telephony installation.
Continue reading “No Jitter: IPT Lessons Learned, including Wideband”