Home WTI User's Guides
1. Introduction
2. Binary Block Read Mode and Structure
2.1. Compressed Binary Block Read Sequence
2.2. Compressed Binary Block Structure
2.2.1. Data Block Structure
2.2.2. Record String Structure
3. Compression Decompression Methods
3.1. Table Decompression
3.1.1. Nibble Positioning
3.1.2. Record String Format Data Decompression Considerations
3.1.3. Table Decompression Example
3.2. Space Compression
4. DLE Stuffing
5. The Cyclic Redundancy Check Option
5.1. Calculation
6. Customer Service
PollCat Series

1. Introduction


This guide is provided to assist users in writing polling software for use with the PollCat series Pollable Call Accounting Terminals. The Advanced Programming Supplement describes program requirements and theory related to data storage and transmission. For installation and operation instructions, please refer to the User's Guide for your PollCat unit.

Note that the information in this programming guide can be applied to the PollCat II, PollCat II Jr., PollCat III, and the PollCat III N. Throughout this document, all four instruments are referred to as "PollCat".

Disclaimer on Toll Fraud

We do not guarantee that if you use the PollCat, you will not become a victim of toll fraud. We provide this device to assist you in minimizing your exposure to such losses. By monitoring call records as they are received, you can potentially catch suspect calls before they escalate and cost large sums of money. However, responding to alarms and determining what constitutes fraud and abuse is the responsibility of the user. Western Telematic, Incorporated assumes no responsibility for any losses due to improper use of this product.

Typographic Conventions

Throughout this manual, typefaces and characters have been used to denote the following: