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Creating Websites for the 4630 IP Telephone
Browser Features and Behavior
B-9
■ <option> defines the values available in a <select> scrolling list or drop-down menu.
■ <select> defines scrolling lists and drop-down menus.
■ <textarea> provides free-form user input and display. This provides a scrolled text area for the
user to read or type text.
Character Entities 5
As with any syntactic language, HTML has certain characters that have special meaning. The two
most obvious of these characters are the < and > symbols, which surround all tags. These
characters cannot be typed in directly if the designer's intent is to display these characters. Thus,
all characters that can be displayed in a web browser have numeric values assigned to them. In
addition, many of these characters have names also assigned. The numeric values are entered
into the source web page as &#nnn; where nnn is some 3 digit value. For example, the < symbol is
entered as '<'. Name values are entered into the source web page as &name; where name is
the name associated with this character. Again, using the < symbol, this would be entered as '<'.
The set of characters defined by the World Wide Web Consortium are fully supported in the
browser in conformance with the standard.
Colors 5
The browser supports 256 colors. Colors may be specified by name, RGB percentages or RGB
raw numbers. The HTML and CSS specifications suggest 16 named colors. The 4630 IP
Telephone browser recognizes these color names, which are: aqua, black, blue, fuchsia, gray,
green, lime, maroon, navy, olive, purple, red, silver, teal, white, and yellow. Beyond these 16 well-
known names, it is recommended that RGB percentages or raw numbers be used for specifying
colors.
Fonts 5
Font specifications are one of the most important styles that may be applied to a web browser.
Because of the size of the screen on the 4630 IP Telephone, the browser has only a single font
available for use. Font weights, such as normal and bold, are supported, although finer values,
such as lighter and bolder are not. Normal and Italic font styles are also supported. Font sizes are
also supported, specified by either percentages or raw numbers can be used. However,
percentages below 50% all appear as the same size.
Although some problems were found with font specifications, given the size and resolution of the
screen, fonts behave reasonably well. The only major problem found is the inability to specify font
families.
See the Design Guidelines
section for information on displaying images.