Instruction manual

Page 1469 of 3156
Features and Services
Extended Tone Detector Global
Parameters Download
Contents
The following are topics in this section:
Feature description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1469
Operating parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1471
Feature interactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1471
Feature packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1471
Feature implementation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1471
Task summary list . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1471
Feature operation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1474
Feature description
An Extended Tone Detector (XTD) card is capable of performing both Dual-
tone Multifrequency (DTMF) and Dialtone (DT) detection. It is possible to
download parameters onto the card so that it may be customized for a
particular environment. On the current UK Extended Tone Detector (XTD)
cards, the NT5K20AA and the NT5K20AB, it is possible to download two
parameters onto these cards. These parameters are the A-law/Mµ-law for the
Extended DTMF (XDTR) portion of the card, and the first stage dialtone
detection (DT).