Integrated Services Digital Network (ISDN) is Service is a powerful tool across the world which provides digital transmission of various services like Voice, Video and Data through the telephone line network, and Primary Rate Interface (PRI) is a telecommunications standard used on Integrated Services Digital Network (ISDN) for carrying multiple DS0 voice and data transmissions between the network and a user.
BSNL New ISDN Primary Rate Interface(PRI) Plans and Tariff
- Customer can opt for any pulse which shall apply for all local and STD calls. However all ISD Calls are to be 60 sec pulse duration irrespective of pulse rate of local/STD Calls.
- General plan rural/urban ISD tariff shall be charged for all ISD Calls.