[Freeswitch-users] VoIP IP DSLAMs

Fri Jun 17 12:25:59 MSD 2011

yes, it doesn't add up because the application is in a rural area. the
Phybridge is a good solution except for the price. thanks David. however,
the MSAN, perfectly describes what i'm looking - hopefully the investment is
lower.

thanks to all who contributed.

On Fri, Jun 17, 2011 at 3:37 PM, David Ponzone <david.ponzone at ipeva.fr>wrote:

> 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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> *
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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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