Telephone line model

What does it do?

The telephone line modelling module provides simple modelling of one way and two way telephone lines.

The path being modelled is:

• terminal
• | < hybrid echo (2-way models)
• |
• | < noise and filtering
• |
• | < hybrid echo (2-way models)
• CO
• |
• | < A-law distortion + bulk delay
• |
• CO
• | < hybrid echo (2-way models)
• |
• | < noise and filtering
• |
• | < hybrid echo (2-way models)
• terminal