Doug: I believe the other key factor is your RF environment "Im transmitting 1-3 miles over a salt water ¾ mile wide river." Assuming you are using RF planning tools, You may want to tweak your RF link path analysis.
F --- Tom DeReggi <[EMAIL PROTECTED]> wrote: > I have plenty of VOIP customers behind my Trango > network. > I'm also getting excellent results using Targeted > Technologies proprietary > 8K stream VOIP even over my 900Mhz Trango. > Trango has plenty of processing power and pps > performance to do VOIP. > > The relevent question is, is the oversubscription > rate you plan to use on > your network within the capabilty of delivering > VOIP? > There are many challenges in delivering quality VOIP > over ANY PtMP network > design. > > Although prioirtization helps, its not the one save > all feature. In PtMP end > users must compete for upload time of the AP, even > smart polling systems do > not 100% solve this issue in an oversubscribed > network, although helps > significantly. Backend prioiritization is not enough > for upload direction, > if it gets choked at the AP before it reaches the > prioritization. If you > are going to do VOIP, you must be more conservative > on your oversubscription > rate, and you will be fine. On the download side it > is not a problem as > traffic will reach the bandwdith > management/prioiritization before it > reaches the AP. > > With that said, Trango had been working on a VOIP > prioritized firmware last > year for the 5580, I do not know if it was released > or not. > The second issue is whether you are designing your > Trango network with > enough RF margin. Never never use a bare 5580 > radio, its pointless. The > Behive antennas are now shipping for the Trango 5580 > also!! They work great, > and bring the signal up to between 15-18 db antenna > gain, depending on the > case. They are great. > > Lastly, the newest Trango Firmwares added some > support to help with out of > order packets with its ARQ algorithym. This seemed > to help quite a bit to > optimize the VOIP performance when using ARQ. We > only run Trango with ARQ. > To valuable to turn off. (With the exception of for > 5830s). > > The other decission you'll need to make is whetehr > the over all design of > your network is good enough to be a VOIP provider. > You will have to be the > judge of that. Voice services are demanding, from > an uptime SLA point of > view. To handle this, we are adding more point to > point links, more > licensed links, getting rid of backbone bottle > necks, etc. > > But Trango can handle VOIP just fine, as far as > capabilty of a radio. The > VOIP engineering is up to you, on the router behind > and in front of them. > > Tom DeReggi > RapidDSL & Wireless, Inc > IntAirNet- Fixed Wireless Broadband > > > ----- Original Message ----- > From: "Doug Ratcliffe" <[EMAIL PROTECTED]> > To: "'WISPA General List'" <wireless@wispa.org> > Sent: Monday, July 02, 2007 2:23 PM > Subject: [WISPA] Trango & VOIP > > > Just a quick question to the list, is Trango 5800 > series still a viable > option for providing data & VOIP (IAX2) to > customers? I know a few ISPs out > there who use it for that, but there's virtually no > data at all on the > Trango site regarding it. I tried Canopy Adv. a few > months back but was > unhappy with the overall range & quality (2.5 miles > LOS w/ a reflector, and > 8 port ATA, the voice was choppy when I had all 8 > calls going). I'm > transmitting 1-3 miles over a salt water ¾ mile wide > river. > > > > I am just looking for some real world experiences > out there. > > > > Thanks > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.472 / Virus Database: 269.9.6/865 - > Release Date: 6/24/2007 > 8:33 AM > > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > ____________________________________________________________________________________ Yahoo! oneSearch: Finally, mobile search that gives answers, not web links. http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
