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

[Lyle Giese]

On 07/22/11 22:47, William Stillwell wrote:
> Um, no VOIP involved here.

Wrong.  What do you think Asterisk is?  Chopped meat?  It's a VoIP 
switch.  All traffic inside Asterisk is VoIP.

>
> 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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>
>
> --
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