PTCL upgrades its telephone exchanges to Latest next generation network technology

Pakistan Telecommunication Company Limited (PTCL) is upgrading its Telephone Exchanges from Time Division Multiplexing (TDM) based technology to latest Next Generation Network (NGN) technology for providing better and improved services to its valued customers.
This is to inform our valued customers that PTCL will start the migration series from Korangi Exchange Area from 3^rd July 2011 till-13 July 2011 to streamline and make the service and Hi-tech, utilizing state of art technology.
The customers of Korangi exchange area are being notified that all those telephone numbers with the prefix series 511 and 513 will be migrated on 3-7-2011 from 1:00 am to 9:00 am, 509 on 5-7-2011 from 1:00 am to 9:00 am, 508 on 7-7-2011 from 1:00 an to 9:00 am and 505 and 506 on  9-7-2011 to 13-7-2011 from 1:00 am to 9:00 am. There will be no change in the existing telephone numbers after the migration. There will be minor change of procedure for activation and de-activation of code barring service and other value added services.
PTCL regrets and apologize for any inconvenience and discomfort caused to its customers during the migration. PTCL assures its customers to keep the outrage time as minimum as possible and to provide its customers with uninterrupted, smooth and leveled services.
For any help or assistance customers can call PTCL help desks or call center agents round the clock, on 1236.
PTCL aims to provide its customers with good quality of service and anticipates the customers support during the migration process.