(Interim Standard-41) The North American protocol for passing cellular subscriber information from one carrier to another. IS-41 allowed mobile travelers to roam across the country. Prior to IS-41, calling mobile phone users outside of their home territory meant knowing what area they were in at that moment and dialing a special number to reach them. IS-41 also supports short messages (see SMS).
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
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