How does IP telecom differ from traditional PSTN

• Packet based vs "wire" based

• One IP connection can carry

  • multiple types of information

  • and multiple phone calls

  • all at the same time

• Examples

  • Voice plus text plus video– in two directions – all at same time

  • Call someone and bring in relay in parallel later as needed

  • Call someone and link in an assistant instantly as needed

  • Invoke translators as needed to allow communication between people who all have different disabilities and sensory modalities.