T-Mobile pppd scripts

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I've seen some progress getting pppd working with T-Mobile again. The files I'm using are below.

NOTE: This isn't working reliably for me yet. It worked one time. Now it hangs gsmd and fails to connect.

/etc/ppp/peers/tmobile

  /dev/ttySAC0
  115200
  defaultroute # set the default route
  usepeerdns
  crtscts 
  #lock   # Killing lock made it come much closer to working.  The output of a failed negoatiation is below.
  noauth
  local 
    
  connect "/usr/sbin/chat -v -f /etc/ppp/chatscripts/tmobile"
  disconnect "/usr/sbin/chat -v -f /etc/ppp/chatscripts/tmobile-disconnect"

/etc/ppp/chatscripts/tmobile

  TIMEOUT 10
  ABORT 'BUSY'
  ABORT 'NO ANSWER'
  ABORT 'ERROR'
  SAY 'Starting GPRS connect script\n'

  ""'ATZ'
  SAY 'Setting APN\n'
  OK 'AT+CGDCONT=1,"IP","internet2.voicestream.com"'

  ABORT 'NO CARRIER'
  SAY 'Dialing...\n'
  OK 'ATD*99***1#'
  CONNECT 

/etc/ppp/chatscripts/tmobile-disconnect

  "" "\K"
  "" "+++ATH0"
  SAY "GPRS disconnected."

/etc/ppp/chap-secrets

  # client        server  secret                  IP addresses
  * * ""  *

Modified from info found here: [1]

Failed negotiation

   root@fic-gta01:~$ pppd nodetach call tmobile
   Starting GPRS connect script
   Setting APN
   Dialing...
   Serial connection established.
   using channel 4
   Using interface ppp0
   Connect: ppp0 <--> /dev/ttySAC0
   sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x90eb7f73> <pcomp> <accomp>]
   rcvd [LCP ConfRej id=0x1 <magic 0x90eb7f73>]
   sent [LCP ConfReq id=0x2 <asyncmap 0x0> <pcomp> <accomp>]
   rcvd [LCP ConfAck id=0x2 <asyncmap 0x0> <pcomp> <accomp>]
   rcvd [LCP ConfReq id=0x7 <asyncmap 0x0> <auth chap MD5> <pcomp> <accomp>]
   sent [LCP ConfAck id=0x7 <asyncmap 0x0> <auth chap MD5> <pcomp> <accomp>]
   rcvd [CHAP Challenge id=0xa <fb0f94f8e4ec158ea22337324c11ccd9e5f0d6285629e69e2d5d35811831848a>, name = ""]
   sent [CHAP Response id=0xa <64c6f1a9dc27e14d701ae80f953cb22b>, name = "fic-gta01"]
   rcvd [CHAP Success id=0xa ""]
   CHAP authentication succeeded
   sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15>]
   sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
   rcvd [LCP ProtRej id=0x2 80 fd 01 01 00 0c 1a 04 78 00 18 04 78 00]
   rcvd [LCP TermReq id=0x3 0b 21]
   LCP terminated by peer (^K!)
   sent [LCP TermAck id=0x3]

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