[VoiceOps] New to VoIP

[Alex Balashov]

For an actual, facilities-based carrier?  Yes, I agree completely. 
The OP was talking about an ITSP operation.

There are places even in a CLEC network where open-source components 
like proxies can be very beneficial - providing both cost savings and 
increased flexibility / customisation.  But in principle, yes, the 
thing needs to be based around a real switch(es), if it is in fact a CLEC.

On 06/21/2010 05:25 PM, Eric Hiller wrote:

> From my experience setting up a CLEC using open source software is not the
> way to go, and I am typically all for open source and design much of my
> ISP side around it. If you actually plan on growing I would recommend a
> true switch though, it simply takes too much time to roll your own
> solution and it will never be as reliable as some of the gear out there.
> However, you will also end up spending a minimum of $300k I would
> estimate.
>
> -Eric
>
>> On 06/21/2010 02:49 PM, Jon Radel wrote:
>>
>>> Well mostly. As an example, Acme Packet SDs have very expensive
>>> (comparatively speaking, at least) content addressable memory (CAM)
>>> wherein lives the lookup table for all active SIP sessions, thus
>>> allowing the hardware to deal with a much higher volume of RTP packets
>>> than a general purpose computer of the same general size and "power"
>>> could hope to process, not to mention making it more resilient to DoS
>>> attacks.
>>
>> CAM-like memory, and also ASICs to assist in processing of media and
>> the CPU work involved in packet forwarding.
>>
>> There's no question that pound-for-pound, a high-end SBC can handle a
>> whole lot more concurrent calls (with media) than general PC hardware
>> with a general purpose task-switching OS with a general purpose PCI
>> bus, general purpose I/O scheduler, and a userspace process doing a
>> lot of the work.
>>
>> However, a) you may not need that and b) depending on what it is
>> exactly that you intend to do, it may be quite possible to design a
>> topology that does not involve relaying media at all most of the time
>> (which is where proxies tend to be useful), in which case the case for
>> the open-source option is substantially bettered.
>>
>> --
>> Alex Balashov - Principal
>> Evariste Systems LLC
>> 1170 Peachtree Street
>> 12th Floor, Suite 1200
>> Atlanta, GA 30309
>> Tel: +1-678-954-0670
>> Fax: +1-404-961-1892
>> Web: http://www.evaristesys.com/
>> _______________________________________________
>> VoiceOps mailing list
>> VoiceOps at voiceops.org
>> https://puck.nether.net/mailman/listinfo/voiceops
>>
>>
>
>
> _______________________________________________
> VoiceOps mailing list
> VoiceOps at voiceops.org
> https://puck.nether.net/mailman/listinfo/voiceops


-- 
Alex Balashov - Principal
Evariste Systems LLC
1170 Peachtree Street
12th Floor, Suite 1200
Atlanta, GA 30309
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/