What is V.92?
V.92 is the newest dial-up modem specification 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 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
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 are traveling.
What will PCM Upstream do for me?
PCM Upstream boosts the upstream data rates between the user and
ISP 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 information.
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.
When will I be able to buy V.92 modems?
V.92 modems are available now.
When will Cayuga Internet support V.92?
Cayuga Internet now fully supports V.92.
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
How much time will I have if I choose to take
an incoming call?
Cayuga Internet currently provides up to 4 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
Yes. Initiating calls is easy with MOH. First, a MOH application
is executed. This program suspends the data connection between your
modem and the ISP 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?
For the purposes of this document, we will use Telco terms that
are used in the United States. These services may be called by a
different name in other countries.
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.
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.
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 the Telco.
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 than
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.
NetWaiting, like all MOH applications requires the user to have
Call Waiting service with their telephone company. Additionally,
Call Waiting must be enabled. Some ISPs (e.g. AOL) automatically
turn off Call Waiting in their dial up scripts.