ISDN
Jun 18, 2008
Listen to this episode in Metacast mobile app
Don't just listen to podcasts. Learn from them with transcripts, summaries, and chapters for every episode. Skim, search, and bookmark insights. Learn more
Episode description
Digital technology allowing two calls to be made on one line, up to 10 numbers and additional features.
For the best experience, listen in Metacast app for iOS or Android