Sep 98 V.90 check

On 6-Sep-98, I tested 4 V.90 modems from 2 different lines (served by different GTE CO's- central offices), calling 4 types of V.90 servers.

The modems tested were:
3Com/USR v90 (model 1786-02 firmware 4.9.1)
Lucent LT WinModem (firmware 5.20)
Hayes/Accura 4924 Lucent PCMCIA (firmware 52198)
Zoom 2949 (firmware 2.081)

Servers called include:
3Com TCH (Total Control Hardware)
Ascend TNT
Livingston PM3 (still only beta v90 code for these servers)
Bay Networks

Line 1 is my home line, served by GTE's remote GTD5 office; Line 2 is a business served by GTE's switching GTD5 office. Here are the results. You may have different results as the telco routing on 56k modem calls can affect performance:

Modem & Line	Server	Connect RX/TX rate	V.90 success rate
USR - Line 2	3Com TCH-Prodigy	49.3k/28.8k	100%
USR - Line 2	Ascend TNT-GTE.net	49.3k/24.0k	100%
USR - Line 2	Bay - Prodigy v90 beta	48.0k/21.6k	100%
USR - Line 2	Livingston -Hawaii.net****	49.3k/24.0k	100%
USR - Line 2	3Com TCH-ILH****	49.3k/28.8k	100%
Lucent LT - Line 2	3Com TCH - Prodigy	49.3k/28.8k	100%
Lucent LT - Line 2	Ascend TNT-GTE.net*	49.3k/24.0k*	100%
Lucent LT - Line 2	Bay - Prodigy v90 beta	48.0k/24.0k	100%
Lucent LT - Line 2	Livingston-Hawaii.net	49.4k/24.0k	100%
Hayes Accura 4924 Lucent Venus PCMCIA	ALL ISPs in DMS100****	---NoEC **	0%
Hayes Accura 4924	3Com TCH-ILH****	48.0/24.0k	100%
Zoom 2949 - Both lines	ALL	---Fake ***	0%
USR - Line 1	3Com TCH-Prodigy	48.0k/28.8k	16.7% (1-in-6)
USR - Line 1	Ascend TNT-GTE.net	46.6k/24.0k	16.7% (1-in-6)
USR - Line 1	Bay-Prodigy v90 beta	44.0k/21.6k	3% (1-in-36)
USR - Line 1	Livingston-Hawaii.net****	48.0k/24.0k	100%
USR - Line 1	3Com TCH - ILH ****	49.3k/28.8k	100%
Lucent LT - Line 1	3Com TCH-Prodigy	46.6K/24.0K	16.7%
Lucent LT - Line 1	Ascend TNT-GTE.net*	44.0k/24.0k	16.7%
Lucent LT - Line 1	Bay-Prodigy v90 beta	46.6k/21.6k	3%
Lucent LT - Line 1	Livingston-Hawaii.net****	45.3k/26.4k	100%
Lucent LT- Line 1	3Com TCH - ILH****	48.0k/26.4k	100%

* - KFlex must be disabled (s38=0) to get a V.90 connection.
** - The Hayes/Lucent PCMCIA will "connect" at 48k+ rates, but with no error correction, so as to make the connection worthless; forcing error correction ( \N4) results in NO CARRIER. It will connect V.90 only to ILH - the ISP located in a GTD5 office, not the vast majority of ISPs served by DMS100 office. I haven't tested KFlex connects as the customer uses a v90/x2 provider.
*** - The Zoom sucks big time. It may pretend to be connected at times, but no data can pass; other times it doesn't even pretend - it just gives NO CARRIER. Once in a while, it might actually connect and pass data for some period of time, and some >0bps rate. It will do 34-38k KFlex connects to the Livingston & Ascend servers.
**** - ILH and Hawaii.net have access from a GTD5 CO; all the other ISPs are served from a DMS100 office.

Sep 98 V.90 check

Modem & Line

Server

Connect RX/TX rate

V.90 success rate