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Primary Rate ISDN (PRI)

PTCL provides virtually unlimited number of ‘pairs’ at customer’s office which grow as your business grows. We provide 30 lines or any multiple of 30 lines and then connect you in no time

PTCL’s Primary Rate ISDN (PRI) service uses the public telephone network to carry an all-digital signal that can satisfy Customer Company’s voice and data communications needs in the most efficient, flexible way possible.

PTCL PRI service gives you 30-40% greater efficiency than traditional analog service. Fewer connections are required and calls are completed faster, saving customers time and money. PTCL’s PRI service is ideal for enterprises that need simultaneous transmission of voice, data and video communications over a single line.

With PRI service, you can:

  • A combination of voice and data communications with scalability.
  • Re-allocate capacity at any time.
  • Expect 1.54 Mbps of capacity


Basic Rate Interface BRI

BRI is a worldwide powerful tool for provisioning of different services like voice, data and image transmission over the telephone line through the telephone network. Based on ISDN technology, it is being viewed as the logical extension of the digitalization of telecommunication network.

PTCL’s BRI is a digital access technology uses standard twisted pair cables and is nearly three times faster than a 56Kbps dial-up line.  It also provides high quality of digital transmission and high speed data interfaces. 


  • Cost Effective
  • Dual Communication (Data & Voice)
  • Save travel time with virtual meetings using videoconferencing.
  • Good option for backup connectivity

For further queries please contact 111-20-20-20

Business Connectivity