[TriLUG] Re: voip

[Jim Ray]

Me thinks I'd avoid downloading 7 debian iso and carrying on 2 conversations
at the same time; however, you'd have pretty much 64 kbps for each of two
channels with your 128 Mbps DSL.  I'd give it a go.

Hth,

Jim


> -----Original Message-----
> From: trilug-bounces at trilug.org [mailto:trilug-bounces at trilug.org] On
> Behalf Of Ralph Blach
> Sent: Thursday, February 19, 2004 12:28 PM
> To: jonc at nc.rr.com; Triangle Linux Users Group discussion list
> Subject: [TriLUG] Re: voip
> 
> Jon,
> 
> For right now I just want to run a sigle VOIP line, using my computers
> sound card.  I have a DSL line, 768 down, 128 up, and a +1 ghz computer
> with ata 133.  Woudl this be good enought for a simple install?
> 
> Chip
> Jon Carnes wrote:
> > On Thu, 2004-02-19 at 08:43, Ralph Blach wrote:
> >
> >>Jon,
> >>
> >>I would really like to experiment with asterik.  Can asterik operate
> >>with just a sound card.  Are there any providers in the area who server
> >>chapel hill?
> >>
> >>thanks
> >>
> >>Chip
> >
> >
> > Yes.  Asterisk is a complete PBX/VoiceMail/ACD server.  It can use any
> > VoIP component without the addition of any special hardware - so it can
> > use a SIP (or other protocol) connection to a Gateway provider like
> > FeatureTel for it's trunking and can handle multiple VoIP phone
> > connections (also via SIP).
> >
> > With the addition of some hardware components, you can hook up ordinary
> > trunks (POTs lines) or T1's to the server.  You can also add hardware
> > that allows you to hook Analog telephones directly to the server - but
> > why bother when the cost of VoIP phones is so cheap these days.
> >
> > FeatureTel (as well as TWTC, Vonage, Packet 8, etc...) all service
> > Chapel Hill.  For that matter, anyone in the world with a VoIP server
> > can service Chapel Hill - its just that only those with a local gateway
> > will have access to local telephone numbers.
> >
> > In other words, if you get trunking (or phone service) from a provider
> > in Washington DC, then your phone number will have the 212 area code and
> > that will be your local dialing area.  So calling your neighbor in
> > Chapel Hill will be long distance!  Still the cost of Long Distance is
> > very small with most VoIP providers.
> >
> > Don't be afraid to download, install, and play with Asterisk.  It's
> > quite powerful.  Note though that Asterisk needs lots of CPU in order to
> > function as a decent phone switch.  A 1Ghz box with lots of RAM and a
> > SCSI HD could probably handle 5 phones, whereas a 2GHz box could
> > probably handle 20 phones... It scales well, but does need CPU in order
> > to function nicely under load.
> >
> > The highest load, seems to be from VoiceMail/AutoAttendent activities;
> > servicing these seems to need very fast CPU and a SCSI disk subsystem.
> > The actual phone connections don't require very much processing power in
> > order to sustain the connections.
> >
> > Let me know if you have any other questions!
> >
> > Jon Carnes
> >
> 
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