All you need is a phone line! All phone lines have a constant flow of voltage, around 40-70 volts (up to 100 volts when it rings!), but you can't just plug stuff into it and expect it to work. You can really mess with your phone system by doing that.
Salary Between $45,000 and $50,000. The average annual salary of a developmental specialist assistant was $47,000 as of 2014, according to the job site Simply Hired.hile developmental specialist assistants earned $47,000 in 2014, Simply Hired reported average salaries of $51,000 for developmental specialists. Simply Hired's survey sample could include more level III developmental specialist assistants, which would account for the small difference in salaries.
The BLS reports that 103,060 teacher assistants were employed in the day care services industry in May 2011. BLS data shows that teacher's assistants in the industry earned $10.24 an hour or $21,290 a year on average.hildcare Workers. According to the Bureau of Labor Statistics, there were 286,250 childcare workers employed in the day care services industry as of May 2011. These workers earned an average hourly wage of $9.40. This hourly pay rate translates to an average annual wage of $19,560.