Bringing IP functionality to legacy equipment, Siemens will unveil an IP adapter for its Optiset line of desktop office telephones. By transferring the switching fabric from the line card on the PBX to an Ethernet port, the adapter will allow enterprise users to convert to IP calls without buying new line equipment." The difficulty in comprehending what this press release means is the result of:.
1. gobbledygook
2. triggerwords
3. industry jargon
4. absratct qualifiers

3) industry jargon

Explanation:

Industry jargon is defined as the technical terminology that is supposed to be associated with industry components to produce a certain meaning. It defines about certain technical activity of group or people in industry.

According to the question, industry jargon is the reason behind understanding and perception of press release for the IP call adapters as they are not able to get meaning of that technical terminology.    

Other options are incorrect because abstract qualifiers, gobbledygook and trigger-words are not the result of difficulty occurring in comprehending. Thus, the correct option is option(3).

a local network will allow everyone in the office to share the printer.