[comp.dcom.modems] USR Sportster 2400 PC / Trailblazer Plus

kevin@kosman.UUCP (Kevin O'Gorman) (06/01/90)

I was at a client site and tried to dial in to my home machine.  No luck.
The client has a USR Sportster 2400 PC, and the home machine is a TB+
set to answer with PEP tones first.  The Sportster barfs (read: NO CARRIER)
at the first hint of those PEP tones.  Is this normal?  Do I have to change
the order of answers for this fershligginer modem?

-- 
Kevin O'Gorman ( kevin@kosman.UUCP, kevin%kosman.uucp@nrc.com )
voice: 805-984-8042 Vital Computer Systems, 5115 Beachcomber, Oxnard, CA  93035
Non-Disclaimer: my boss is me, and he stands behind everything I say.

grr@cbmvax.commodore.com (George Robbins) (06/02/90)

In article <1181@kosman.UUCP> kevin@kosman.UUCP (Kevin O'Gorman) writes:
> I was at a client site and tried to dial in to my home machine.  No luck.
> The client has a USR Sportster 2400 PC, and the home machine is a TB+
> set to answer with PEP tones first.  The Sportster barfs (read: NO CARRIER)
> at the first hint of those PEP tones.

> Is this normal?

Yes, for smart modems that have "enhanced" call progress reporting.

> Do I have to change the order of answers for this fershligginer modem?

Yes, unless the modem has some way to disable any but the usual ring/answer
detection.  Perhaps the better idea is to convince the client that they'ed
be happier with a T1000 PC or TB+ PC modem.  8-)

-- 
George Robbins - now working for,     uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing:   domain: grr@cbmvax.commodore.com
Commodore, Engineering Department     phone:  215-431-9349 (only by moonlite)

ralphs@halcyon.wa.com (Ralph Sims) (06/02/90)

kevin@kosman.UUCP (Kevin O'Gorman) writes:

> I was at a client site and tried to dial in to my home machine.  No luck.
> The client has a USR Sportster 2400 PC, and the home machine is a TB+
> set to answer with PEP tones first.  The Sportster barfs (read: NO CARRIER)
> at the first hint of those PEP tones.  Is this normal?  Do I have to change
> the order of answers for this fershligginer modem?

Try setting S9 and S10 registers to 20.  This may delay the modem's
interpretation of the PEP tones long enough to get a connect.  This
kludge has worked on any number of picky brands.  USR users (as well
as some others) learn quickly to disable VOICE recognition, as their
modems fail to distinguish between the Telebit's electronic PEP tones
and the human voice.

As an aside, Setting S10 to 30 or so (3 seconds) on both ends can be
an effective way of disabling call-waiting.


--- "These are the days of lasers in the jungle..."
     Paul Simon, "The Boy In The Bubble" on the _Graceland_ album

det@hawkmoon.MN.ORG (Derek E. Terveer) (06/08/90)

In article <1181@kosman.UUCP> kevin@kosman.UUCP (Kevin O'Gorman) writes:
> I was at a client site and tried to dial in to my home machine.  No luck.
> The client has a USR Sportster 2400 PC, and the home machine is a TB+
> set to answer with PEP tones first.  The Sportster barfs (read: NO CARRIER)
> at the first hint of those PEP tones.  Is this normal?  Do I have to change
> the order of answers for this fershligginer modem?

That is one way of doing it.  Another is to change the result code setting of
the US robotics modem from
the higher level (where it thinks that the pep tones are a voice) to something
dumber, like x1, which works for me.

derek
-- 
Derek Terveer		det@hawkmoon.MN.ORG

gammal@altitude.CAM.ORG (Michael Gammal) (06/11/90)

det@hawkmoon.MN.ORG (Derek E. Terveer) writes:

>In article <1181@kosman.UUCP> kevin@kosman.UUCP (Kevin O'Gorman) writes:
>> I was at a client site and tried to dial in to my home machine.  No luck.
>> The client has a USR Sportster 2400 PC, and the home machine is a TB+
>> set to answer with PEP tones first.  The Sportster barfs (read: NO CARRIER)
>> at the first hint of those PEP tones.  Is this normal?  Do I have to change
>> the order of answers for this fershligginer modem?

I have solved this problem when using my usr hst to pep by setting AtX0.

-- 
Michael Gammal	           Apple //e & Atari Enthusiast		Dawson College	
gammal@altitude.CAM.ORG		qp qp qp qp qp qp qp 		Montreal, Que.
				db Support Nature db 		Canada