Automatic message account This topic has 1 reply, 1 voice, and was last updated 22 years, 2 months ago by Shai. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 18th March 2001 at 08:23 #33252 AlonGuest I need to get the Automatic message accounting (AMA) format for voice services. Can anyone help with a suitable resource to find it? 24th March 2001 at 09:42 #33253 ShaiGuest Telcordia TR-NWT-1100 is the name of the spec. Also if you have a NOrtel system – look in the NTP for anything with AMA or Bellcore AMA format. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Telecom Design’ is closed to new topics and replies.