|v92 Modem Information
What is V.92?
V.92 is the new dial-up modem specification from the ITU
(International Telecommunications Union) that introduces
three new features that will add convenience and performance
for the modem user. The three features are quick connect,
Modem-on-Hold™ (MOH) and PCM Upstream.
What is the ITU?
The International Telecommunications Union (ITU) is a formal,
worldwide telecommunications standards body. The ITU is a
charter organization of the United Nations (UN), and is
based in Geneva, Switzerland.
What makes a V.92 modem faster than V.90 modem?
The quick connect feature of a V.92 modem cuts the modem
negotiation or handshake time by up to 50% so you can
dial-in faster. The main feature that makes a V.92 modem
faster than a V.90 modem is V.44 the new compression protocol.
It is based upon a compression scheme that can speed up your
web browsing as much as 50%. Not all V.92 modems are required
to have V.44 data compression.
Why do I need or want V.92?
Although broadband technologies (DSL and Cable) are all the
rage right now, in reality, most people around the world only
have access to analog phone lines. Dial-up modems will remain
the primary means to get on the Internet for several years,
so it is important to improve the user experience on this technology.
How do V.92 modem speeds compare to ISDN, ADSL and Cable speeds?
The V.92 modem is a regular dial-up modem with increased speed.
ISDN (64-128Kbps), ADSL (640Kbps and up), Cable (1000Kbps and up)
and other broadband connections have a higher "raw power"
connection speed so they will continue to be faster than a V.92 modem.
What will quick connect do for me?
Very simply, quick connect will shorten the time it takes to
make a connection by remembering ("training") the phone line
characteristics and storing them for later usage. Typically,
the modem handshake (all that noise you hear) takes from 25
to 27 seconds. Surveys indicate that people are quite irritated
at this length of time. Quick connect will cut the modem
handshake time in half for most calls, a significant improvement.
Will quick connect work for me while I'm on the road with my laptop?
Yes. Since quick connect actually "trains" the modem on the
first call, all the following calls will be quick connects -
faster handshake times. People usually make more than one
connection from the same phone line (e.g. hotel) when they
What will PCM Upstream do for me?
PCM Upstream boosts the upstream data rates between the user
and Ridgenet to reduce upload times for large files and email
attachments. A maximum of 48 Kbps upstream rates is
supported. PCM Upstream will work particularly well
with new equipment such as Internet-connected digital
cameras, which primarily upload rather than download
Will I be able to upgrade my V.90 modem or will I have to buy a new V.92 modem?
Some of the older V.90 modems that were upgraded from
x2 or K56Flex to V.90 do not have the hardware needed
to implement V.92. In those cases, you would have to
buy a new modem to get V.92 capabilities. All other
modems should be V.92 upgradeable by simply upgrading the
When will I be able to buy V.92 modems?
V.92 modems are available now.
What will MOH do for me?
Many households use the same phone line for both
voice calls and data (Internet), so when the user
is browsing the Internet, an incoming call cannot
get through. MOH allows you to receive an incoming
call and stay connected to the Internet (Call-Waiting
service from your phone company is all that is required).
It also works in reverse; you can initiate a voice
call while connected and keep the modem connection.
How much time will I have if I choose to take an incoming call?
Ridgenet allows 5 minutes of "hold" time
Do I have to redial to get back to the Internet?
No. When you hang up the phone you can resume browsing.
Can I stay on the Internet and make a phone call?
Yes. Initiating calls is easy with MOH. First, a MOH
application is executed. This program suspends the
data connection between your modem and Ridgenet so you
can pick up your phone and make an outgoing call in
the usual way. The application puts the modem "on-hold",
flashes the hook, and a dial tone appears on the
extension handset so you can make a call. When your
call is complete, the modem will detect an extension
on hook, flash the hook twice, and return to the
data (Internet) connection.
There are different types of CallerID available from the telephone companies. What services do I need to use MOH?
First and foremost, you must have Call Waiting in order to
take advantage of MOH. CallerID (CID) is not required.
There are 2 types of CID, type 1 and type 2.
Type 1 CID is a service that allows a telephone subscriber
to receive information on the incoming call BEFORE the user
(or modem) takes the call by going off-hook. Sometimes called
on-hook CID, it does not require Call Waiting, but it does
require hardware support on the modem board if you want to
use this feature via the modem. This is because without specific
hardware support, there is no data path from the telephone line
to our modem device when the modem is in the on-hook condition.
In summary, for MOH functionality, the user must have Call Waiting
service from their telephone company at a minimum. Optionally, for
CID on CW, the user must have CID on Call Waiting (not just CID)
service from their Telco.
Type 2 CID (also referred to as CID on Call Waiting) does not require
hardware support on the modem board. Type 2 CID is not required for
MOH to work. However without type 2 CID support from the Telco,
the user will not be able to receive details (telephone number)
of the incoming third-party call. For the purposes of a MOH discussion,
we will only refer to Type 2 CID.
Where can I get a MOH software application?
We expect that most modem manufacturers will supply a Modem-on-Hold
applet with the modem driver. Check with your modem manufacturer
What is V.44?
A new link-layer compression standard based on technology developed
by Hughes Network Systems, V.44 will replace the current V.42bis
compression technology. V.44 offers a higher compression ratio
What will V.44 do for me?
Higher compression ratios mean that more data can be downloaded
in the same amount of time. The most significant improvement
will be noticed when you are browsing and searching the web,
since HTML text files are highly compressible. For most users,
data throughput will be increased by 20 to 60%.
Is this the last standard development for analog dial-up modems?
New features are proposed to the ITU every year, so it is
not out of the realm of possibility that we will see new
developments for the analog modem in the next year.
What is NetWaiting™?
NetWaiting (a BVRP application) is bundled with the Conexant
V.92 modem chipset and driver.
NetWaiting, like all MOH applications requires the user to have
Call Waiting service with their telephone company. Additionally,
Call Waiting must be enabled.