Learn how to become a diagnostic medical sonographer. Research the job description, education and licensing requirements to find out how to start a career in medical sonography.nly a few states require sonographers to be licensed. While state requirements can vary, a professional certification from a national credentialing organization is often required to become licensed.
Portability is a characteristic attributed to a computer program if it can be used in an operating systems other than the one in which it was created without requiring major rework. Porting is the task of doing any work necessary to make the computer program run in the new environment.
General overviewEdit. Mobile number portability is implemented in different ways across the globe. The International and European standard is for a customer wishing to port his/her number to contact the new network (recipient), which then sends the number portability request (NPR) to the current network (donor). This is known as recipient-led porting.