Luis Antonio Prata Barbosa
2007-Oct-10 05:45 UTC
[asterisk-users] Wifi - Managed access points...
Hi, I'm working on a Wifi VoIP project specification. It will have almost 8 APs and 20-30 wifi phones. And after some research, I still having some questions ... 1) Are Managed Access Points (and switch controllers) really important to implement good wifi woip (w/ low latency and acceptable handover time) ? 2) What is the difference between (3com WX1200 + 3com AP 3750) and (DES-1228P + DWL-3140AP) ??? 3) 3com says their AP implements WMM ... and DLink says they priorize VoIP traffic based on VLAN ... are those methods the same ? Thank you, Luis A P Barbosa -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20071010/3191f8f3/attachment.htm
Luis, I strongly recommend that you test the setup before deployment. I have done a lot of tests with WiFi VoIP, handover, security, and though I don't have experience with the hardware you mention, I know WiFi VoIP is very brittle, especially in combination with WPA and handover. Battery life is a very important concern. And maybe you can report your findings to this list? Luis Antonio Prata Barbosa schreef:> Hi, > > I'm working on a Wifi VoIP project specification. It will have almost 8 > APs and 20-30 wifi phones. > > And after some research, I still having some questions ... > > 1) Are Managed Access Points (and switch controllers) really important > to implement good wifi woip (w/ low latency and acceptable handover time) ? > > 2) What is the difference between (3com WX1200 + 3com AP 3750) and > (DES-1228P + DWL-3140AP) ??? > > 3) 3com says their AP implements WMM ... and DLink says they priorize > VoIP traffic based on VLAN ... are those methods the same ? >No, they are not. Ron Arts> Thank you, > > Luis A P Barbosa
Luis, Like Ron, I have tested deploying several different handsets and have been disappointed. I am currently testing a deployment with a DECT system by Aastra that uses multiple access points the talk SIP to Asterisk and DECT to the handset. Being based on DECT they have good battery life and handover of live calls between points is a key feature. Pricing is along the same as what I would pay for High end access points and good handsets. There are systems like this coming out from Aastra, Snom, Polycom/Kirk and probably some others. If I were going to deploy the setup you are talking about I would check this option out before jumping solely on wifi. If you want contact me off list and I'd be happy to visit in more detail. On 10/10/07, Luis Antonio Prata Barbosa <luispratalistas at gmail.com> wrote:> Hi, > > I'm working on a Wifi VoIP project specification. It will have almost 8 APs > and 20-30 wifi phones. > > And after some research, I still having some questions ... > > 1) Are Managed Access Points (and switch controllers) really important to > implement good wifi woip (w/ low latency and acceptable handover time) ? > > 2) What is the difference between (3com WX1200 + 3com AP 3750) and > (DES-1228P + DWL-3140AP) ??? > > 3) 3com says their AP implements WMM ... and DLink says they priorize VoIP > traffic based on VLAN ... are those methods the same ? > > Thank you, > > Luis A P Barbosa > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users >-- Bruce Reeves Nortex Networks
Hope you don't mind I jump in here. I am interested in DECT's handover of live calls. My question is, does the IP address on the phone change when moving from on access point to another? -----Original Message----- From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Bruce Reeves Sent: Wednesday, October 10, 2007 9:20 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] Wifi - Managed access points... Luis, Like Ron, I have tested deploying several different handsets and have been disappointed. I am currently testing a deployment with a DECT system by Aastra that uses multiple access points the talk SIP to Asterisk and DECT to the handset. Being based on DECT they have good battery life and handover of live calls between points is a key feature. Pricing is along the same as what I would pay for High end access points and good handsets. There are systems like this coming out from Aastra, Snom, Polycom/Kirk and probably some others. If I were going to deploy the setup you are talking about I would check this option out before jumping solely on wifi. If you want contact me off list and I'd be happy to visit in more detail. On 10/10/07, Luis Antonio Prata Barbosa <luispratalistas at gmail.com> wrote:> Hi, > > I'm working on a Wifi VoIP project specification. It will have almost > 8 APs and 20-30 wifi phones. > > And after some research, I still having some questions ... > > 1) Are Managed Access Points (and switch controllers) really important> to implement good wifi woip (w/ low latency and acceptable handovertime) ?> > 2) What is the difference between (3com WX1200 + 3com AP 3750) and > (DES-1228P + DWL-3140AP) ??? > > 3) 3com says their AP implements WMM ... and DLink says they priorize> VoIP traffic based on VLAN ... are those methods the same ? > > Thank you, > > Luis A P Barbosa > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users >-- Bruce Reeves Nortex Networks _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users