[asterisk-users] use dahdi for local terminal modem access?

[William Stillwell]

Um, no VOIP involved here.

I have an asterisk server with 2 23B+D PRI's

I want to telnet/ssh into the asterisk server, and make an outbound call 
serial based modem/terminal connection (Like the 80/90's BBS Days). 

No TCP/IP or PPP or crazyness

(ie, dialing into a Modem set to AA hooked to a Cisco Console Port)



> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Lyle Giese
> Sent: Friday, July 22, 2011 8:07 PM
> To: asterisk-users at lists.digium.com
> Subject: Re: [asterisk-users] use dahdi for local terminal modem
> access?
> 
> On 07/22/11 18:13, William Stillwell wrote:
> > I have some terminals that have phone lines.
> >
> > One of my tech had an idea of using IAXmodem or something similar to
> use
> > existing PRI/DAHDI Trucks for dial out via the asterisk/Linux
> console.
> >
> > Anybody ever heard of doing this?
> >
> > I would think maybe would use iaxmodem maybe and a shell terminal
> app?
> >
> > (basically I'm dialing into a remote access device that uses a pots
> like
> > for remote administration, and don't want to string a channel bank
> off
> > my asterisk box, and a hook to a modem)
> >
> >
> >
> > --
> 
> Depends on your expectation.  Because of compression in the codecs, it
> will be hard to get fast dialup.  If you mean ssh or telnet, it might
> work.  If you mean vnc or RDP over this, you may not get enough usable
> bandwidth to do that.
> 
> Given this, I have in an emergency dialed into a RAS server via a VoIP
> line. My laptop connected at 14,400bps.  All I needed to do was telnet
> into an APC masterswitch to toggle power on one outlet.  It worked.
> 
> I was surprised at getting a 14,400bps connect.  I was not expecting
> that high and really did not need that high.  300 baud probably would
> have been fast enough to telnet into an APC masterswitch.
> 
> Lyle Giese
> LCR Computer Services, Inc.
> 
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