Displaying 20 results from an estimated 30000 matches similar to: "Questions about PRI lines for modem banks and Asterisk"
2003 Nov 03
1
<--PRI--> * <--PRI--> modem bank - problems
Gentlemen
We are attempting to use * in a simple switching application:
+-----> office lines
|
V
LEC <--PRI--> * <--PRI--> modem bank (56k dialup modems)
The problem is that (even with no office lines active) the modems
have difficulty establishing a connection, the connection is slow
(way too slow for 56k modems) and the connections are
2004 Dec 13
2
How can i test a modem with Asterisk?
Hello all,
I'm a newbee and i'd like to test some analog modems i have before
purchasing any new hardware. I'm using:
- Pentium 500 MHz
- Several 56K and 33.6K analog modems (internal and external).
- ISDN BRI 1 port card.
- A LAN i've successfully tested some SIP sofphones.
- An ordinary telephon line (and an ordinary phone :) ).
I only modified
2004 Aug 06
3
bitrate for slow modems
Depending on what you are broadcasting, for 28.8 I would go 16kbps and be
really safe...
Lithium
----- Original Message -----
From: "John Griffiths" <john@capmon.com>
To: <icecast@xiph.org>
Cc: <icecast@xiph.org>
Sent: Thursday, April 05, 2001 3:12 PM
Subject: [icecast] bitrate for slow modems
> ok so 24kbps for 56k modems...
>
> can i go any lower and get
2006 Apr 25
3
56K Dialup and VOIP over same PRIs
Anybody have suggestions on having a 56K dialpool and VOIP
connections with an Asterisk box over the same set of PRIs? We've
done the PM3 with PRIs for just dialup, but are looking for a way to
integrate our Asterisk box and move our voice calls onto the same PRIs.
Ian
--
Ian White
Victoria Free-Net Association
email: iwhite@victoria.tc.ca
http://victoria.tc.ca/
2003 Nov 25
2
modem to modem calls through asterisk
Modem connect speeds on calls through * seem to be lower than calls
made through the telephone company lines or our old Rolm PBX. All data
calls have 2 wire analog modems on both ends.
For my set up I have channels of a Zhone channel bank tied to 2 modems.
The Zhone channel bank interfaces my * server with a T400P card.
modem --- Zhone Channel bank - * via T400P card - Zhone channel bank -
2003 Nov 20
2
Dialup Internet through Asterisk server?
Hello,
I was wondering if it was easy to setup a dialup internet account system in
Asterisk somehow(like PPP)
laptop with modem -> PSTN line -> Asterisk server -> Server's broadband
internet connection
Has anyone done this?
Thanks,
MATT---
2004 Aug 06
6
what I'd like to do
> >
> > the bitrate on the mp3's is 128 (great for listening off the HD)
> >
> > whats a good bitrate to encode for streaming audio?
>
> I think this might be the problem 128kbps isn't going to work over a modem.
>
> I think 24kbps is probably the pratical limit for 56k modems. 56k modems might
> be able to get a 32kbps stream but only under
2008 Nov 25
3
USB or PCI dialup modem supported by Centos
Hello everybody,
I've searched google for a while looking for a list of USB or PCI dialup
modems supported by CentOS without success.
Any information on this subject will be really appreciated.
Thank you.
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2010 Nov 25
4
Incoming calls through SS7 for data modem transmissions - possible??
Hello,
We are working on implementing a solution for a medium service provider.
They were previously using a Cisco AS5300 gateway with some PRI trunks to
receive modem calls, then route them out the Internet.
The Telco they were buying the trunks to discovered this configuration and
restricted them due to legal conventions, and stated that in order to
continue doing this, they would have to talk
2003 Jul 14
1
asterisk and modem
hi,
i have to do a demo with asterisk, unfortunately i don't have yet an
x100p card, so i need to use a 56k voice modem on my motherboard...
could someone tell me how i can configure asterisk to use this modem
to call?
thanks a lot for the help!!!
Angelo
2007 Aug 08
4
How to use a modem under CentOS
I have a modem in my system that comes up with this in lspci:
01:07.0 Communication controller: Agere Systems 56k WinModem (rev 01)
What programs under CentOS, if any, can use this modem and how?
Thanks.
mhr
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2003 Nov 03
1
isdn, modem, etc.
I see many posts about using ISDN cards and modem cards.
Does this mean I can use a regular modem (that supports voice) as an
FXS, or FXO ?
If so, can you provide an example.
It might be the easiest way to test Asterisk's collaboration with the
PSTN (or analog phones) and provide proof of concept to non-believers.
Thanks.
Shoval
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2010 Aug 03
3
Fax/Modem, Asterisk, Channel Banks
I've been replacing an old Toshiba DK switch with an Asterisk solution. I'm
needing a solution for fax machines that works as well as a POTS line from
my carrier. If the POTS line is the solution, I'll keep it, but I'd rather
move away from that.
Here's what I'm thinking...will it work?
I would use a dual-port Digium T1 card. In one port, I'd terminate a telco
PRI
2005 Feb 09
2
relation between burst- and queue-size with low bitrate streams
Hi all,
I have a question about the relationship between the "queue-size" and the
"burst-size" <limits> parameters.
Q: When a client connects is the burst-size immediately added to the
queue-size?
If this is the case then the slack for a 16kpbs client goes down from 50 sec
(102400[queue-size] / 16kbps = 50 sec) to 18 seconds ( (102400 -
65536[burst-size]) / 16kpbs =
2004 Jun 28
5
Modems behind Asterisk - how?
The configuration I'm building replaces an existing PBX with Asterisk. There
are 8 existing modems that people use to call in from the outside to connect
to PC(s) on the inside to transfer data, etc. Callers access these modems by
calling the main number and then dialing an extension for the modem they
want to talk to.
What are my options for supporting these modems with Asterisk? Here are
2003 Aug 24
5
T1 to T1 on asterisk?
Hi all,
To solve my need for dial in modems, I've hit upon an idea: buy a
used T1 "analog" modem bank like a Lucent Portmaster that takes
in a T1 and provides several 56K modems. This is overkill for a
lightly used dial in service, but the prices of these boxes is so
cheap (~$300) with ISPs going away from dial in service that it
makes sense.
This is how I imagine it would work:
2005 Jun 26
2
FXO as modem (was: * fax reliability between ISDN PRI and FXS ports)
Rich Adamson <radamson@routers.com> wrote:
>
>> I have been investigating on this list and found that faxing is not
>> reliable between Zaptel
>> cards and that Digium does not support nor
>> recommend fax over the TDMXXB interfaces.
>>
>> Is this true ? Will fax not be reliable enough for my customer ?
>
> True... the TDM card (or its drivers)
2003 Jun 30
4
asterisk with modem
hi,
i need to do a demo of asterisk in a office that doesn't have an ISDN
line, can someone tell me if asterisk works also if i use a modem card
mapped on /dev/ttyl0 insted of use a isdn card?
did someone try to do something similar before?
thanks for your help!!
Angelo
2003 Sep 17
2
using pci modem cards as fxs/fxo ports in *
Hi all,
forgive the question but is it possible to use PCI modem cards (aka
winmodem's) as FXO/FXS ports in * ?
what about external modems like the USR Sportsters?
Thanks in advance,
Bryan.
Bryan Nolen
Lead Developer
http://Arc.Net.AU
http://cdonline.com.au
2009 Nov 03
5
Asterisk and Software Data Modem
Hello everybody
I am trying to connect my asterisk to a payment equipment trough PSTN.
I have a TDM400P card with an fxs module an the equipment use modem to send
data!
I was thinking to implement a software data modem in asterisk, but I found
out that there is just faxmodem for asterisk, Is anyone here know something
about software data modem working with asterisk to help out?
Thanks,