Asterisk 1.0.0.1 context

1001.conf

[1001]
exten => _X.,1,Set(CALLERID(name)=1.0.0.1)
exten => _X.,n,Answer
exten => _X.,n,Wait(1)
exten => _X.,n,Playback(1001-recordtype) ; "Enter record type on your phone keypad, followed by the hash key. Press 1 to go to next character"
exten => _X.,n,Read(recordtype,,,si,)
exten => _X.,n,Playback(1001-domain) ; "Enter domain name to retrieve record, followed by the hash key"
exten => _X.,n,Read(domain,,,si,)
exten => _X.,n,Set(RECORD="${SHELL(/usr/bin/1001.py "${recordtype}")}")
exten => _X.,n,Set(ADDR="${SHELL(/usr/bin/1001.py "${domain}")}")
exten => _X.,n,SayPhonetic("${ADDR}")
exten => _X.,n,Playback(1001-result) ; "Result"
exten => _X.,n,SayPhonetic("${SHELL(/usr/bin/dig +short "${ADDR}" "${RECORD}" @1.0.0.1 | tr ':' 'k')}")
exten => _X.,n,Wait(1)
exten => _X.,n,Playback(1001-partnership) ; "1.1.1.1 is a partnership between Cloudflare and APNIC but don't ask them for support with this phone number"
exten => _X.,n,Wait(1)
exten => _X.,n,Hangup()

1001.py

#!/usr/bin/env python
# please submit complaints about this code to /dev/null
from sys import argv,stdout

out = ""
newchar = False
for char in argv[1]:
  if char == "*":
    out += "."
    continue
  if char == "1":
    newchar = True
    continue
  if char == "2":
    l = "abc"
  if char == "3":
    l = "def"
  if char == "4":
    l = "ghi"
  if char == "5":
    l = "jkl"
  if char == "6":
    l = "mno"
  if char == "7":
    l = "pqrs"
  if char == "8":
    l = "tuv"
  if char == "9":
    l = "wxyz"
  if not out or newchar or out[-1] not in l:
    out += l[0]
  else:
    try:
      out = out[:-1] + l[l.index(out[-1])+1]
    except IndexError:
      out = out[:-1] + l[0]
  newchar = False
  continue

stdout.write(out)
stdout.flush()