[net.micro.atari16] avatek 1200

QBZJ@CORNELLA.BITNET (08/05/86)

I think my modem is working, but then again...
The avatek works wonderfully for local numbers when using the auto-dialer
in the pulse mode.  But when I try to dial long-distance numbers the
telephone company says I've misdialed.  Now I've checked this by hand and
its the right number so the modem (or me) is screwing up somehow.  I
wonder if any one else has had a similar experience or if I should take it
it for a tune-up.  Here's what I do and the resulting problem:
>ATDP17164582638                                 ;  command to dial modem
The modem clicks a lot here and I run to pick up another line to here what's
going on.
Operator:  Check the number or call Ma Bell.
The example in the avatek manual shows a long distance number being dialed
without the number 1 preceding the area code.  Surely this can't be
right.  I'll try this and also try a few other local numbers to see
if the modem has any other problems.  Any ideas?
                                                peter lorraine
                                                 qbzj@cornella.bitnet

hyc@UMIX.CC.UMICH.EDU (Howard Chu) (08/05/86)

Might want to try inserting a pause in immediately after the first
"1" of the phone number. SOmetimes it takes a while for the long
distance service to kick in. (Just a thought...)
  Howard Chu
  hyc@umix.cc.umich.edu

jhs@MITRE-BEDFORD.ARPA (08/05/86)

One problem at least is obvious:  if you are PULSE dialing and you pick up
another phone, all pulses sent while you are listening will be lost.

Pulse dialing works by OPENING THE CIRCUIT briefly for each pulse.  If you are
across the line with another phone, this open circuit will be defeated by the
loop current running through the second phone in parallel.

Try letting the poor modem dial the whole number before picking up the phone.
Dial it once and time the pulses, then let it do its thing on a non-shunted
phone line and I bet it will work fine.

Tone dialing usually works fine even with another phone or two across the
line, as the tones still get through.

-John Sangster
jhs@mitre-bedford.arpa