Number Assignment Module
Encyclopedia
Number Assignment Module (NAM) - The NAM is the electronic memory
in the cellular phone that stores the telephone number
and an Electronic Serial Number
. Phones with dual- or multi-NAM features offer users the option of registering the phone with a local number in more than one market.
Memory card
A memory card or flash card is an electronic flash memory data storage device used for storing digital information. They are commonly used in many electronic devices, including digital cameras, mobile phones, laptop computers, MP3 players, and video game consoles...
in the cellular phone that stores the telephone number
Telephone number
A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network. When telephone numbers were invented, they were short — as few as one, two or three digits — and were given orally to a switchboard operator...
and an Electronic Serial Number
Electronic Serial Number
Electronic serial numbers were created by the U.S. Federal Communications Commission to uniquely identify mobile devices, from the days of AMPS in the United States from the early 1980s. The administrative role was taken over by the Telecommunications Industry Association in 1997 and is still...
. Phones with dual- or multi-NAM features offer users the option of registering the phone with a local number in more than one market.