1.5 DOCUMENT CONVENTIONS
The following information provides an explanation of the symbols that appear on the TA7104/7108 and
in the documentation for the product.
Warning Definition
Warning: Means danger. You are in a situation that could cause bodily injury. Before you work on any
equipment, you must be aware of the hazards involved with electrical circuitry and be familiar with
standard practices for preventing accidents.
Where to find Translated Warning Definition
For safety and warning information, see “Appendix A - Standards Compliance and Safety Information”
on page 19.
This Appendix describes the international agency compliance and safety information for the
TA7104/7108. It also includes a translation of the safety warning listed in the previous section.
Other Conventions
The following are other conventions you will encounter in this manual.
Caution: Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury and/or damage to the equipment or property.
Note: Indicates important information about the current topic.
Standards Supported Indicates which RFC, Draft or other standard document is supported for a
specific feature.
SCN vs PSTN
In Mitel’ and other vendor’s documentation, the terms SCN and PSTN are used. A SCN (Switched
Circuit Network) is a general term to designate a communication network in which any user may be
connected to any other user through the use of message, circuit, or packet switching and control
devices. The Public Switched Telephone Network (PSTN) or a Private Branch eXchange (PBX) are
examples of SCNs.
Standards Supported
When available, this document lists the standards onto which features are based. These standards
may be RFCs (Request for Comments), Internet-Drafts, or other standards.
The TA7104/7108’s implementations are based on the standards, so it’s possible that some behavior
differs from the official standards.
For more information on and a list of RFCs and Internet-Drafts, refer to the IETF web site at
http://www.ietf.org.