ppp troubles with slirp

[mwooding@thecity.sfsu.edu (Miguel Wooding SF Ten.Union)]

I'm using the version of ppp that comes with slink, 2.3.5-2, and I log
in using a chat script to start up slirp at my ISP.  (They make
available login scripts -- for windows and macintosh users -- to start
slirp, but they don't have any direct ppp login for reasons that are a
mystery to me.)  The ISP is on SunOS.

I can dial in fine with minicom and use it as a terminal, but when I
use slirp and ppp the ppp connection seems to freeze up at times and
then start working again.  Even something as simple as a telnet
session gets stuck at times.  I thought maybe there isn't an 8 bit
clean link, and I tried invoking slirp as

            slirp "asyncmap ffffffff" "escape ff"

Unfortunately, this didn't seem to help much, if at all.  I've written 
to the sysadmin, but I haven't gotten any useful information.  Anyone
have any ideas about how to solve this?  How to diagnose it? What more 
information should I provide?

Thanks,
--Miguel


Here's my /etc/ppp/peers/provider:

# This file was generated by pppconfig.  You can edit the following lines
# but please do not delete lines or the change the comments or you will
# confuse pppconfig.
noauth         #pppconfig_noauth
connect "/usr/sbin/chat -v -f /etc/chatscripts/provider"  #pppconfig_connect
debug          #pppconfig_debug
/dev/ttyS1       #pppconfig_dev
115200      #pppconfig_speed
defaultroute         #pppconfig_route
noipdefault      #pppconfig_ipdefault
user mwooding #pppconfig_user
# End of pppconfig controlled lines.  You can add lines below here without
# confusing pppconfig.

And /etc/chatscripts/provider:

ABORT BUSY
ABORT "NO CARRIER"
ABORT VOICE
ABORT "NO DIALTONE" 
ABORT "NO ANSWER"
"" ATZ
OK ATDT5940014
CONNECT ''
ogin: \d\qmwooding
ssword:  **censored**
'' \d\n 
']%-\n-]%' 'slirp -P -b 57600 "asyncmap ffffffff" "escape ff"'
"" \d\c