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.
For example the median expected annual pay for a typical Child Life Specialist in the United States is $47,973 so 50% of the people who perform the job of Child Life Specialist in the United States are expected to make less than $47,973.Source: HR Reported data as of October 2015. Median $47,973. 1  Salary.ur team of Certified Compensation Professionals has analyzed survey data collected from thousands of HR departments at companies of all sizes and industries to present this range of annual salaries for people with the job title Child Life Specialist in the United States.