Definition of Twitter tags, the easy hashtag directory.
Vendor. Wapopia. IS-41. IS-41, also known as ANSI-41, is a mobile, cellular telecommunications system standard to support mobility management by enabling the networking of switches. ANSI-41 is the standard now approved for use as the network-side companion to the wireless-side AMPS (analog), IS-136 (Digital AMPS), cdmaOne, and CDMA2000 networks. It competes with GSM MAP, but the two will eventually merge[citation needed] to support worldwide roaming. IS-41 facilitates inter-switch operations like handoff and roaming authentication. SMS Forum.