tag:blogger.com,1999:blog-3125086853899898004.post487222130650174650..comments2023-10-14T03:42:39.660-07:00Comments on The OpenBTS Chronicles: Niue #10: Settling this Nonsense Once and for AllDavid A. Burgesshttp://www.blogger.com/profile/14372434100222472756noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-3125086853899898004.post-58095526760641628972011-08-28T07:57:12.742-07:002011-08-28T07:57:12.742-07:00I have done a lot of wireless work and Research. A...I have done a lot of wireless work and Research. A cruise ship anchored offshore's radar operates close to 900 MHz and would obviously disrupt the wireless Internet. Chances are the ship left or shut off it's scan and everything went back to normal. It wouldn't take a genius to figure that out if the wisp had any clue what they were doing. Most reputable wisps try to conserve bandwidth and would be glad to work with you. If you have future projects I would like to contribute/learn.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-84414049734498511742011-02-20T16:39:34.829-08:002011-02-20T16:39:34.829-08:00Segin -
Even without jitter, latency can cause a ...Segin -<br /><br />Even without jitter, latency can cause a problem in conversations. The most common symptom is when both talkers keep trying to start talking at the same time, which usually happens because the pauses between bursts of speech are longer than either speaker expects. It can be irritating.David A. Burgesshttps://www.blogger.com/profile/14372434100222472756noreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-91008248222953554652011-02-20T16:31:01.429-08:002011-02-20T16:31:01.429-08:00Telephone service for GSM and PSTN is less sensiti...Telephone service for GSM and PSTN is less sensitive to latency than Skype, as Skype is over packet-switched networks (the Internet) and not circuit-switched. An average latency of 800ms means you could have one packet arrive in 600ms and another in 1000ms, especially without QoS, whereas circuit-switched channels have fixed latency - if it's 800ms latency for one frame, it's 800ms latency for all frames.Anonymoushttps://www.blogger.com/profile/15535818933839141361noreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-79382336584644809582011-02-12T18:19:20.639-08:002011-02-12T18:19:20.639-08:00this is a good project for rural connectivity.pls,...this is a good project for rural connectivity.pls,can i get more information about its deployment(maconess@yahoo.co.uk).Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-87659771209610199282010-04-06T13:18:24.109-07:002010-04-06T13:18:24.109-07:00Not as bad as you'd think as long as the packe...Not as bad as you'd think as long as the packet loss is low. For commercial service, they will need a lower-latency link, but when your only choice is satellite there are lower limits on latency, around 250 ms per hop I think.<br /><br />Try making a call between two different cell phone carriers with handsets in the same room. The latency might surprise you.David A. Burgesshttps://www.blogger.com/profile/14372434100222472756noreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-40915203916825301212010-04-06T12:18:59.579-07:002010-04-06T12:18:59.579-07:00how does it feel like making skype-out calls on a ...how does it feel like making skype-out calls on a network with 800ms pings?Big Guyhttps://www.blogger.com/profile/11083898693795465537noreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-42179689447568804322010-03-26T16:02:07.408-07:002010-03-26T16:02:07.408-07:00Pavel -
Good to hear from you!
The Niue system i...Pavel -<br /><br />Good to hear from you!<br /><br />The Niue system is up and running, but still as a closed test system. I logged into the BTS remotely this morning. There were 27 handsets in the service area, 29 provisioned in the PBX and about 1000 calls made in the last two weeks, although most of the calls were loopback tests.<br /><br />The big delay now is the integration between the GSM system and the existing wireline PBX. The Xorcom gateway finally arrived, but there have been some difficulties getting it set up. I doubt Telecom Niue will open service to the public before they support local calls to wireline phones.<br /><br />We are also working on some features to simplify provisioning of new subscribers. The SMS-based autoprovisioning is a little too free-wheeling for Telecom's taste, so we are working with them on something more controlled.<br /><br />But the unit *is* running and I even saw some activity on it while I was logged in.<br /><br />-- DavidDavid A. Burgesshttps://www.blogger.com/profile/14372434100222472756noreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-84909418776322297432010-03-26T15:16:53.100-07:002010-03-26T15:16:53.100-07:00Wow, what a story, thanks for sharing. And a defin...Wow, what a story, thanks for sharing. And a definitely a big step for the project - being on the way of providing a nation-wide cellular service (albeit a small nation) :)<br />So what is the status of Niue cellular service right now?Pavel Antokolsky aka Zigmarhttps://www.blogger.com/profile/12411405644716149156noreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-54909584381227244332010-03-25T08:25:21.495-07:002010-03-25T08:25:21.495-07:00That's pretty good. Guess that funny shaped p...That's pretty good. Guess that funny shaped piece of metal up there warps their auras or some such.<br /><br />By the end of the trip we joked among ourselves, "Don't pass gas or you'll break the internet." Our landlord at the guesthouse nagged us, too. It always starts the same, "I'm not a technical person, but ... you're wireless ... they're wireless ... there must be some connection. Mr. St Clair says suchandsuch ..." I've sure you've heard it before. It turns out that this guy had a DNS problem. I didn't know GSM systems could affect DNS in nearby IP networks. ;-) We learn something new every day.David A. Burgesshttps://www.blogger.com/profile/14372434100222472756noreply@blogger.comtag:blogger.com,1999:blog-3125086853899898004.post-41799442942376682072010-03-25T00:50:26.671-07:002010-03-25T00:50:26.671-07:00Congratulations.
I'm responsible for wifi netw...Congratulations.<br />I'm responsible for wifi networks over here in france, we have worse people that requests antennas being dismantled because they "feel sick" even when there's no radio equipment attached to them ;)Raphael Jacquothttp://www.wireless-fr.orgnoreply@blogger.com