Application Notes

CMX860 Telephone Signalling Transceiver

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Subject: Short Message Service (SMS) Implementation using CML Products

This document aims to assist modem product designers using and understanding Short Message Service (SMS) applications.
CML Microcircuits' (CML) integrated circuit devices (CMX85x and CMX86x) could be used to realize and achieve a Caller Line Identification (CLI), SMS or Low Rate Messaging Service (LRMS) data transfer within a wireline system.
[application note link].

Publication: AN/Telecom/SMS/1 December 2002.

Subject: CLI with the CMX860, CMX867 and CMX868

Caller Line ID (CLI) was originally developed for the US market but has become commonplace throughout the World because of its multitudinous applications.
There are a number of CLI protocols to which telephone equipment manufacturers must comply.
This document gives an overview of two types; BELL GR-30-CORE/SR-TSV-002476 (or ETSI 300 659-1 section 6.1.1) used in the USA and most of the world and Caller Line Identification Presentation (CLIP) BT SIN 227 (or ETSI ETS 300 659-1 section 6.1.2c) used in the UK.
[application note link].

Publication: AN/Telecom/CLI/ 3 March 2004.

Subject: CMX86x and CMX850 Filter Coefficient Generator Program

This application comprises the Filter Coefficient Generator program as an Excel spreadsheet.
[application program link].

Publication: AN/Telecom/850/3 August 2003.

Subject: Recommendations for V.23 1200/75 b/s duplex call set-up

V.23 recommendations do not describe how a connection is established; a procedure is described below and illustrated in Figure 1; however you should not rely on other modems following this particular flow.
Note also that 1200/1200 bps half-duplex connections are not covered by this application note.
[application note link].

Publication: AN/Telecom/V23/1 July 1998.

Subject: Direct Access Arrangement Designs

An HTML library of simple explanatory DAA reference designs.
[application program link].

Publication: Nil.

Subject: Silver Telecom Application Notes

Silver Telecoms specialises in wireline telecoms line-interface modules, some of which employ CML IC products.
[application note link].

Publication: Nil.

Other Relevant Application Notes