Modem to Modem Connections
DComTalk.com Forum Index DComTalk.com
Discussion of VoIP, VPN, Video Conferencen, DSL and other data commucations.
 
 FAQFAQ   MemberlistMemberlist     RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
 
Google
 
Web dcomtalk.com
Modem to Modem Connections

 
Post new topic   Reply to topic    DComTalk.com Forum Index -> Modems
Author Message
Joseph Bongiardina
Guest





Posted: Fri Dec 24, 2004 5:53 am    Post subject: Modem to Modem Connections Reply with quote

VOIP doesn't support connecting to a modem, for example dialing a remote
computer or pbx for administration. Are there filters or adapters that
permit this? My computer modem can no longer connect to such devices.
Back to top
Reed
Guest





Posted: Fri Dec 24, 2004 8:04 am    Post subject: Re: Modem to Modem Connections Reply with quote

Joseph Bongiardina wrote:
Quote:

VOIP doesn't support connecting to a modem, for example dialing a remote
computer or pbx for administration. Are there filters or adapters that
permit this? My computer modem can no longer connect to such devices.

That's why it is called "Voice over IP", and not "Modem over IP".
Analog modems cannot deal with their signals being packetized by
the VOIP process. Human voice can. Some combinations of very low
speed modems over very high packet rate IP might work some times,
but would be highly unreliable. There may also be VOIP devices
that "spoof" modems (and faxes) but you would have to ask your
VOIP provider if they provide such.

--reed
Back to top
James Knott
Guest





Posted: Fri Dec 24, 2004 5:49 pm    Post subject: Re: Modem to Modem Connections Reply with quote

Reed wrote:

Quote:
There may also be VOIP devices
that "spoof" modems (and faxes) but you would have to ask your
VOIP provider if they provide such.

That sort of thing has been used in digital cell phones for years, where the
phone appears as a standard modem, but the data doesn't get converted to
modem signals, until it hits the wired phone network.

So, it's certainly doable, but is there a market for it?
Back to top
Gary
Guest





Posted: Fri Dec 24, 2004 6:29 pm    Post subject: Re: Modem to Modem Connections Reply with quote

"Reed" <reedh@rmi.net> wrote in message news:41CBA0DD.1B454EF0@rmi.net...
Quote:

That's why it is called "Voice over IP", and not "Modem over IP".
Analog modems cannot deal with their signals being packetized by
the VOIP process.

It's not the packetization that's the issue, it's the compression. Run an
uncompressed VoIP channel and modem/fax signals will pass through it
reasonably well. If you're on Vonage, just set the "bandwidth saver" to
"best quality" and you'll get an uncompressed channel (assuming your
broadband can support it). The ITU standard for uncompressed voice is
G.711, so if see a setting for G.711 from a provider, that's what you want.

By the way, many traditional long distance providers run VoIP/G.711 in their
internal networks, and nobody notices! It can be done with proper
engineering.

-Gary
Back to top
Hooda Gest
Guest





Posted: Fri Dec 24, 2004 7:30 pm    Post subject: Re: Modem to Modem Connections Reply with quote

"James Knott" <james.knott@rogers.com> wrote in message
news:AKGdnbM7d-vVjVHcRVn-ig@rogers.com...
Quote:
Reed wrote:

There may also be VOIP devices
that "spoof" modems (and faxes) but you would have to ask your
VOIP provider if they provide such.

That sort of thing has been used in digital cell phones for years, where
the
phone appears as a standard modem, but the data doesn't get converted to
modem signals, until it hits the wired phone network.

So, it's certainly doable, but is there a market for it?


Somebody seems to think so...

http://www.att.com/news/2004/12/16-1

"'Fax and Modem Support," now makes it possible for most commonly used
facsimile machines and some modems to interoperate with AT&T CallVantage
Service. It may also work with some Personal Video Recorders and satellite
TV systems. "


--
Hooda Gest
"Respect is difficult to win, easy to lose."
Back to top
Art Jackson
Guest





Posted: Fri Dec 24, 2004 10:49 pm    Post subject: Re: Modem to Modem Connections Reply with quote

Hooda Gest wrote:
Quote:
"James Knott" <james.knott@rogers.com> wrote in message
news:AKGdnbM7d-vVjVHcRVn-ig@rogers.com...

Reed wrote:


There may also be VOIP devices
that "spoof" modems (and faxes) but you would have to ask your
VOIP provider if they provide such.

That sort of thing has been used in digital cell phones for years, where

the

phone appears as a standard modem, but the data doesn't get converted to
modem signals, until it hits the wired phone network.

So, it's certainly doable, but is there a market for it?



Somebody seems to think so...

http://www.att.com/news/2004/12/16-1

"'Fax and Modem Support," now makes it possible for most commonly used
facsimile machines and some modems to interoperate with AT&T CallVantage
Service. It may also work with some Personal Video Recorders and satellite
TV systems. "



Hey Hooda! Good to see you still kickin'. I'm trying out Cable Internet
now and it seems to be doing real good so far. Twice the speed of my
DSL, and half the price. I would love to get Callvantage here, but it's
not available in my 270 Area Code yet. We have 16 inches of snow on the
ground here in NW KY. Drifts are 3-5 feet deep in places. My neighbor is
coming down your way tomorrow. Want me to send you some? ;-)
Hope you and your family have the very best Christmas and a Happy New
Year. God Bless.
Back to top
Hooda Gest
Guest





Posted: Sat Dec 25, 2004 12:18 am    Post subject: Re: Modem to Modem Connections Reply with quote

"Art Jackson" <nospam@ringading.buz> wrote in message
news:IMSdnRSBbbYPy1HcRVn-jw@adelphia.com...
Quote:
Hooda Gest wrote:
"James Knott" <james.knott@rogers.com> wrote in message
news:AKGdnbM7d-vVjVHcRVn-ig@rogers.com...

Reed wrote:


There may also be VOIP devices
that "spoof" modems (and faxes) but you would have to ask your
VOIP provider if they provide such.

That sort of thing has been used in digital cell phones for years, where

the

phone appears as a standard modem, but the data doesn't get converted to
modem signals, until it hits the wired phone network.

So, it's certainly doable, but is there a market for it?



Somebody seems to think so...

http://www.att.com/news/2004/12/16-1

"'Fax and Modem Support," now makes it possible for most commonly used
facsimile machines and some modems to interoperate with AT&T CallVantage
Service. It may also work with some Personal Video Recorders and
satellite
TV systems. "



Hey Hooda! Good to see you still kickin'. I'm trying out Cable Internet
now and it seems to be doing real good so far. Twice the speed of my
DSL, and half the price. I would love to get Callvantage here, but it's
not available in my 270 Area Code yet. We have 16 inches of snow on the
ground here in NW KY. Drifts are 3-5 feet deep in places. My neighbor is
coming down your way tomorrow. Want me to send you some? ;-)

I love my VoIP. The only problem is when the power is out (and the UPS gives
up) or if the cable service goes south on me. During those hurricanes (and
for a week after), we had lots of trouble but so did the folks on land line
phone service.

You can keep the snow up there, thanks anyway. I've shoveled my share in the
past.


Quote:
Hope you and your family have the very best Christmas and a Happy New
Year. God Bless.


The same to you and yours and have a prosperous 2005.


--
Hooda Gest
"Respect is difficult to win, easy to lose."
Back to top
Joseph Bongiardina
Guest





Posted: Tue Dec 28, 2004 6:22 am    Post subject: Re: Modem to Modem Connections Reply with quote

Thanks for the responses. AT&T does claim to support modem communications.
Optimum Voice doesn't address the issue.

Joe


"Gary" <bogus-email@hotmail.com> wrote in message
news:r7ednYCdld5YhFHcRVn-iQ@comcast.com...
Quote:
"Reed" <reedh@rmi.net> wrote in message news:41CBA0DD.1B454EF0@rmi.net...

That's why it is called "Voice over IP", and not "Modem over IP".
Analog modems cannot deal with their signals being packetized by
the VOIP process.

It's not the packetization that's the issue, it's the compression. Run an
uncompressed VoIP channel and modem/fax signals will pass through it
reasonably well. If you're on Vonage, just set the "bandwidth saver" to
"best quality" and you'll get an uncompressed channel (assuming your
broadband can support it). The ITU standard for uncompressed voice is
G.711, so if see a setting for G.711 from a provider, that's what you
want.

By the way, many traditional long distance providers run VoIP/G.711 in
their internal networks, and nobody notices! It can be done with proper
engineering.

-Gary

Back to top
 
Post new topic   Reply to topic    DComTalk.com Forum Index -> Modems All times are GMT
Page 1 of 1

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum




VoIP Solutions: Telephone Systems Electronics Satellite TV Tech & Gadgets
Powered by phpBB