http://wiki.debian.org/LSBInitScripts

prompt for username and password at install, or at least point at
bpwconfig.

document how to change username and password.

explain why username is saved ... security model is possession of USIM.

add GUI popup like power state changes, insertion, ip-up, ip-down, bad
coverage.

add GUI configuration panel:

Provider: Telstra or Bigpond
Username: (if Bigpond)
Password: (if Bigpond)
APN: telstra.bigpond

recognise EMEI of multiple modems and index into alternate configurations.

add /usr/share/doc/bpw/index.html link to changelog, use guide, security,
known problems, problem resolution techniques, design internals.

use shorter LCP timers to speed response on coverage failure.

test with bad coverage, or no antenna.

ask Maxon what ABORT responses are documented or expected, and what
they mean, and code for them in the chatscript.

ask Maxon and Telstra for public unencumbered specification of the
registration and connection process.

likely commands to expore for future use:

# signal quality
AT+CSQ
+CSQ: 3,99
OK
# rssi, received signal strength indicator
# ber, bit error rate

# check network registration
AT+CGREG?
+CGREG: 0,1
OK
# unsolicited status callback is disabled
# registered to home network

AT$$MBAND?
$$MBAND: 1
OK

# define packet data protocol context
# cid, context id
# pdptype, ip, internet protocol
# apn, access point name
AT+CGDCONT=1,"IP","telstra.bigpond"
OK

# define authentication parameters for the packet data protocol context
# cid, context id
# auth_type, 1 is PAP, 2 is CHAP
# auth_name
# auth_pwd
# (note, they appear to be swapped)
AT$QCPDPP=1,1,"*password removed*","username@bigpond.com"
OK

[connection made]

ATV1E0
AT+CMEE=1

# disable unsolicited status callback
AT+CREG=0
OK

# set current GSM/UMTS network operator
# 3 set format only, no registration or deregistration
# 2 numeric id
AT+COPS=3,2
OK


AT+CGMM
BP3-EXT
OK

AT+CGMR
+CGMR: BP3-EXT  R1.1.137  [May 09 2007 17:04:34]
OK

AT$$SWVER?
$$SWVER: BP3-EXT  R1.1.137  [May 09 2007 17:04:34]
OK

# check PIN status
AT+CPIN?
+CPIN: READY

AT+CGSN
n
OK

AT+CIMI
n
OK