[Freeswitch-users] VoIP IP DSLAMs

David Ponzone david.ponzone at ipeva.fr
Fri Jun 17 11:37:34 MSD 2011 

Nandy,

something does not add up.
When you deploy DSLAMs for public lines, it's not for 24/48 ports, but rather for 20 000 to 30 000 ports.
Perhaps there is a confusion about what is a public line.
A public line is the 200 meters-8km pair of copper going from the local (legacy) telco facility to your house.
You don't install your own DSLAMs for 24/48 ports, or perhaps you are in a very specific situation.
I really doubt you will find a cost effective DSLAM for so few ports.
Plus, you realize you will need to install on DSLAM in all the telco facilities required to get the coverage you need

There are small DSLAMs on the market, but they are targeted for private lines (hospitality, health care, ...) and I really don't know if they can work on public lines.

In case you actually need a small DSLAM just to run ADSL over a private pair of copper, you should have a look at:

http://www.phybridge.com/uniphyer-ip-phones.aspx

This thing does not call itself a DSLAM but it is one.
They market that as a "switch" that enables LAN on your copper wires.
It's a small lie for data usage as you only get 25Mbps/1.4Mbps (ATM), but for voice, that's enough.
Basically, you put the "switch"-DSLAM in the network cabinet where the copper wires go, you connect the wires to it, you connect the ethernet port to your LAN (so your FS). In each room/office, you plug an adapter (provided also by Phybridge) which is basically a small ADSL modem (powered from the switch through the wire), from which you get an ethernet port, with POE on it!

I like the solution on the paper, but never used. Because of the cost:
a 24 ports switch is 3500$
one adapter is 122$

so a full 24 ports solution would be 6500$, which is not very competitive compared to recabling the place.

But your mileage may vary.

David Ponzone  Direction Technique
email: david.ponzone at ipeva.fr
tel:      01 74 03 18 97
gsm:   06 66 98 76 34

Service Client IPeva
tel:      0811 46 26 26
www.ipeva.fr  -   www.ipeva-studio.com

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Le 17/06/2011 à 08:28, Nandy Dagondon a écrit :

> yes, without ATM layer and it's for public lines.
> 
> 
> 
> On Fri, Jun 17, 2011 at 2:19 PM, David Ponzone <david.ponzone at ipeva.fr> wrote:
> Which density are you looking for ?
> Is it for use in a private building or on public lines ?
> 
> David Ponzone  Direction Technique
> email: david.ponzone at ipeva.fr
> tel:      01 74 03 18 97
> gsm:   06 66 98 76 34
> 
> Service Client IPeva
> tel:      0811 46 26 26
> www.ipeva.fr  -   www.ipeva-studio.com
> 
> Ce message et toutes les pièces jointes sont confidentiels et établis à l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisée est interdite. Tout message électronique est susceptible d'altération. IPeva décline toute responsabilité au titre de ce message s'il a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce message, merci de le détruire immédiatement et d'avertir l'expéditeur.
> 
> 
> 
> 
> Le 17/06/2011 à 08:07, Nandy Dagondon a écrit :
> 
>> hello guys!
>> 
>> i'm trying to setup a small exchange w/ Internet service - of course, using FS as the exchange. DSLAMs connect to POTS via 2-wire splitters and that would require using FXS gateway (as what Rob mentioned).  
>> 
>> i'm trying to find out if there's a way we can omit the FXS - so it's FS-to-DSLAM direct via IP.  i'm not sure if this setup is now possible on newer IP DSLAMs. 
>> 
>> 
>> On Fri, Jun 17, 2011 at 10:45 AM, jay binks <jaybinks at gmail.com> wrote:
>> this is MY take on what Nandy is after.
>> 
>> A Dslam provides DSL on certain frequencies of the line..
>> ( some of ) the other frequencies are used for voice.
>> 
>> my understanding is that sometimes this is split off to another device to provide the voice,
>> but in this case Nandy is after a DSlam that will do the DSL part AND the voice frequencies ( Voice signalling / audio by SIP / RTP )
>> 
>> I guess this is a logical question and would be quite interesting to see if there are such devices..
>> sorry I dont know of any :(
>> 
>> Jay
>> 
>> 
>> On Fri, Jun 17, 2011 at 11:31 AM, Rob Hutton <justlikeef at gmail.com> wrote:
>> Can you explain further what you are trying to do?  A DSLAM is a device that provides DSL transport, which is independent of what you run across it.  So normally, you have
>> 
>> |Server | ----|network|----|DSLAM| --------[dsl line] -------[modem or modem/router combo]-----[network]---[Client]
>> 
>> What the Server is (Could be Freeswitch) and what the Client is (could be a VOIP phone) are independent of the transport???  Onewire, Cisco, and others make some DSL Modem/Router combos with integrated Voip to FXS ports for the CPE end.
>> 
>> If you find a DSLAM running one of the OSs that Freeswitch supports, you could compile Freeswitch for it, but I haven't seen one with enough CPU tp handle much besides the traffic.
>> 
>> On Thursday 16 June 2011 19:03:50 Nandy Dagondon wrote:
>> > hello everybody,
>> >
>> > i'm looking for small (24/48 ports)  IP DSLAMs that inter-connects directly
>> > to FreeSwitch via IP.  is this already available on the market? or do we
>> > still have to connect FreeSwitch via POTS splitters and FXS gateways? i
>> > appreciate if you can mention some brands/models.
>> >
>> > tks,
>> > nandy
>> 
>> _______________________________________________
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>> 
>> 
>> -- 
>> Sincerely
>> 
>> Jay
>> 
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