ISDN is a digital technology, which uses digital signals. An ordinary phone line are known as Analog lines. The quality of voice transmission is inferior. Signal distortion, call drop and cross connection are the most common problems faced by customer in the analog lines. Telecommunication is very necessary and important mean in any organization. So ISDN is being developed for better and effective communication using digital signaling.
Benefits:-
* Digital voice clarity.
* No disturbance.
* Faster call completion.Control on telecommunication.
* Less expensive.
You can implement it in very minimum rental plans.