[Lvlug] Asterisk

[Adrian Schmitz]

> From: lvlug-bounces at thelinuxlink.net [mailto:lvlug-
> bounces at thelinuxlink.net] On Behalf Of Linc Fessenden
> Sent: Sunday, October 16, 2005 12:00 PM
> To: lvlug
> Subject: Re: [Lvlug] Asterisk
> 
> Stuart Boreen wrote:
> > That does sound tres cool.
> > How does 911 work since that is now your only phone line?
> 
> Well, my VOIP provider, Broadstream does not yet have 911 service
> available, however I am supposed to be able to just make an extension
> called 911 that dials the local emergency services number, although I
> have yet to do so.  I can also just use my cell phone if need be.
> 
> > I took Skype along on a vacation and was able to call home from a
> > hotspot. Can you use your phone line with a laptop and internet access?
> 
> I should be able to do that easilly, yes.
> 
> > Can you use your VOIP with a microphone and speaker from a laptop?
> 
> Yup, just grab the xten-xlite client and it'll go.
> 
> --
> -Linc Fessenden
> 
> In the Beginning there was nothing, which exploded - Yeah right...
> 
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Asterisk is wonderful. I've been using it for about a year now.  I've got it
set up as a basic PBX with auto-attendant and voicemail, etc.  

We decided to use an IAX trunk to our provider instead of SIP.  I'm not sure
is SIP allows for concurrent sessions on a single channel or not, but I know
with IAX, you can have multiple simultaneous calls over the single circuit.
Most IAX providers allow at least 2 or 3 simultaneous calls on the line at
once (although I believe some allow more concurrent incoming than outgoing
or vice versa).  

We bought a few Grandstream Budgetone BT100 SIP phones (Because they were
cheap. Avoid them; they are awful.).  I use one locally and then two friends
had them at their houses and connected to the asterisk through IPSEC
tunnels.  Using the GSM codec, they were both able to use them without
breaking a sweat.  One has Verizon DSL with PPPoE and the other an RCN cable
modem.  One caveat was that the cable modem guy was once "one-way" with a
telco return and we couldn't get it to work reliably with that setup.  Once
they switched him to "two-way" it worked great.

It has really good scripting support and is very extensible.  Can easily be
glued to external commands.  I've barely scraped the surface of what it
seems this thing can do.  Your imagination is pretty much the limit.


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