Global Title (GT)
A Global Title (GT) is an address used in the SCCP protocol for routing signaling messages on various telecommunications networks. Theoretically, global titles are unique addresses which refer to only one destination, but in practice those destinations can change over a given time-frame. There are three types of GT in use in mobile networks known as E.164 (MSISDN), E.212 (IMSI) and E.214 (MGT).
See Melrose Labs SS7 SMSC, Melrose Labs SMPP SMS Gateway
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