BANGLADESH TELECOMMUNICATIONS COMPANY LIMITED - BTCl

Book 2Chapter TenRequirements of System Functions, Facilities and Supervisions10.1 Switching System FunctionsThe system shall have the flexibility to use for switching purpose the followingfunctions. The system shall allow changes to be done by commands.10.1.1 Translation Function:Any deviation (each of them) shall be treated as “Critical Deviation”.a) Digit Storing CapacityThe system shall have the facility to receive, store and send digit information of:i) 5(five) to 8(eight) digit for local callsii) Maximum 10(twelve) digits for NWD calls, excluding trunk prefix “0”iii) Maximum 15(fifteen) digits for ISD calls, excluding trunk prefix “00”b) Analysis of Dialed NumberThe system shall be capable of analyzing mixed number length for various types ofcalls. The inter-digit pause may be as high as 5 secs. The maximum and minimum digitsrequired for routing and charging shall be programmable on site conditions andchangeable by commands.c) Digit Re-translationThe system shall be capable of changing all of the received digits to a completely retranslatednumber, to be sent forward for further processing. The re-translation digitsshall be programmable on site and changeable by commands.d) Partial Digit Re-translationThe system shall be capable of changing any number of digits (both or either leading orlast digits) from the received digits, to re-translate as a new number, to be sent forwardfor further processing. The re-translation digits shall be programmable on site andchangeable by commands.e) Digit DeletionThe system shall be capable of deleting any number of digits (both or either leading orlast digits) from the received digits, to be sent forward for further processing. Thenumber of digits to be deleted shall be programmable on site and changeable bycommands.f) Digit InsertionThe system shall be capable of inserting any number of digits (both or either at front orafter) to received digits, to be sent for further processing. The digits to be inserted shallbe programmable on site and by commands.Book 2 :: Tender on Replacement of Old Telephones in Dhaka City Page: 47 of 153