Hi Mychaela, Yes, I think it is correct to call the SMSC address a GT. In the IR.21 document of operators it is also listed as a GT AFAIR.
Cheers, Domi > 08.08.2023 dátummal, 8:28 időpontban Mychaela Falconia > <[email protected]> írta: > > Hello fellow developers, > > I am getting ready to implement my own SMSC, connecting to Osmocom CN > via GSUP (see OS#6135), and I have a question about SMSC address > terminology. > > In traditional commercial GSM networks, the SMSC address visible to > the user (prepended to the TPDU for MT SMs, stored in EF_SMSP record > on the SIM for MO SMs) looks like a phone number in full international > format, with TON=1 and NPI=1. For example, T-Mobile's SMSC address is > +12063130004 (to an uninitiated eye it looks exactly like a regular > phone number in Seattle, WA), while the SMSC of Mexican Telcel is > +5294100001410 - one digit longer than regular phone numbers in Mexico, > and a little irregular in structure. > > What is the correct term for these SC-address phone-number-thingies? > Are they Global Titles - or is GT something different? > > If I were to make up fake global-looking SMSC addresses of this form, > e.g., something like +1xxx55501xx for NANP territory, would it be > correct to call such SC-address a fake Global Title? > > Just wondering... > > M~
