100 wifi voip phones with trixbox

Ditto, 100 users on 1 server is easy, but WiFi phones are usually a bad idea, 100 of them will probably turn into a nightmare...
Also consider bandwidth for your 100 users, if 50 of them are on the phone at the same time you need to make sure you can support that bandwidth (with SIP or IAX if that's what you're doing).

All this talk of wireless capacity and you did not even ask him how many access points he is running.

It's probably a Cisco or Nortel wireless with a central controller and mobility management between the AP's

The motomesh stuff is very nice. We have an older Motorola Canopy network.

The problem is not trixbox. Asterisk, the core of trixbox scales very well and is a commercially viable soft switch. THe problem to me is an ISO 'PBX on a disk' an appropriate choice. My comment would be the same for any distro.

Is this a resale environment? Even if it is not with 100 users you need to be able to fix problems so you should know the core Linux, MySQL, Asterisk and FreePBX admin. These are the packages that make up trixbox.

sipX could handle this easily and in my opinion is much easier to manage than asterisk or trix.

http://www.sipfoundry.org

Edufermat,

Motorola has several WiFi technologies, acquired through mergers with other firms.
The WiFi that I am familiar with is what was formerly known as Symbol Technologies. They were founding members of the 802.11 committee, so they know without a doubt what they're doing.
I have not worked with any of the Motomesh stuff, but can say from my contacts at Motorola that these two technologies are eventually going to share the same code base.
In the meantime, the former Symbol stuff, now called Motorola Enterprise Mobility, consists of Access Ports and wireless Switches (I prefer to call them antenna controllers).
802.11a/g/n are all available in this product range, along with wireless switches that manage from 6 to thousands of APs in campus networks.
Symbol equipment was frequently used to back haul Spectralink (now owned by Polycom) voip phones, which have been around for years. Unfortunately, the spectralink stuff uses a proprietary protocol called SVP.
Either way, Motorola brings much to the table:

1. Unparalleled RF knowledge
2. Standards setting
3. Voice knowledge from the cell and analog radio spectrum
4. Cheaper than equivalent Cisco gear

Their wireless products include:
WS2000 - entry level wireless switch 1-6 APs
RFS6000 - mid-level wireless switch 8-48 APs
RFS7000 - high-end wireless switch 8-256 APs
Both the RFS6000 and 7000 can be clustered to scale to thousands of APs.

AP300 - lightweight AP 802.11a/g
AP5131 - thick AP 802.11a/g single or dual radio
AP7131 - thick AP 802.11a/g/n tri radio AP, with optional GSM backhaul capability.

This isn't dlink or linksys, this is the real deal. Read more about it here:
http://www.motorola.com/staticfiles/Business/US-EN/EnterpriseMobi...
And more about Converged Enterprise Communications (TEAM) here:
http://www.motorola.com/team/

Okay that just sounded like a plug for Motorola, apologies to the moderators, but the stuff just works and I could go on for hours. In case you haven't figured it out, I am authorized reseller.

--
Andrew

I really would want to approach this issue from a technical standpoint.

Trixbox CE will conveniently handle more than 100 SIP phones from a single server. Right or Wrong?
Therefore if bandwidth Engineering is done appropriately on the Wifi APs, there is no reason whatsoever why you cannot run just 100 Wifi SIP phones off a Trixbox server. From my experience in Wireless technologies, a major issue that many people take for and granted (or maybe they are deceived by the manufacturers marketing gimmick of "54Mbps Available") and which ultimately spell doom for their network performance is the real bandwidth throughput available on any Access Point (AP). I noticed in one of the submissions above where somebody said the AP has a bandwidth of 1Mbps available (correct me if I'm wrong); and you would want to run 100 Wifi phones off this; this definitely will not work.

Lets assume that each phone will require a bandwidth of about 96kbps (signaling + voice payload) for an G.711 codec (lower with a G.729 codec), this gives you an idea of the kind of AP you will select for this requirement. It then means that you will have to look for an AP that will deliver up to 18Mbps effective throughput at any instance, to be able to achieve this goal. However, for such extension capacity, it is advisable to implement redundancy in the AP deployment.

Regards to you all

Tunde

Well going back to the original post and questions -- the guy stated clearly that he knows wireless.. so no need to question him on that part.

His question of whether Trixbox can handle 100 SIP clients and the possibility of 100 concurrent calls.. easily if you have a descent box.. like a dual core CPU with 2 GIG of ram and say a 160 GIG sata drive.. no problem.

My questions would be more on the delivery side... how are you terminating these calls? Because 100 concurrent calls will take a good size pipe if it is VOIP... and if your considering running g729 I would run the hardware card for transcoding.

A box with that much configuration going on - I would definitely back it up every night. If you need help with this just let me know as it is a snap and takes like a minute to configure. If you have a simple hosting account that most people do - you can FTP the backup zip file to the root of your account (this is the folder below your public_html folder on most providers) to store the backups.

The other suggestion made was SipXecs -- which can handle a far large number of concurrent calls simply by design it does not deal with the RTP audio side of the calls.. it basically gives both legs to the endpoints to manager... now it don't play so well behind NAT but it sounds like this is all going to be on the same subnet so you won't have that problem. SipXecs basically only setups and breaks down the calls.. meaning the same box suggested above will handled several fold more calls because it is less involved in the actual call.

If you need any help just let me help.. free consulting.

JD