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Most operators have a whitelist of SMSCs that they will let you use. Some even ignore the SMSC field and always route all SMS through their SMSC so if you misco
by vadfa 5y ago
Most operators have a whitelist of SMSCs that they will let you use. Some even ignore the SMSC field and always route all SMS through their SMSC so if you misconfigure your phone you will still get to send SMS (and so you can't use an external SMSC to send SMS without paying your telco...)
- lxgr 5y agoInteresting! Would that override still work when roaming internationally, though? It sounds similar to some providers implementing a "catchall" APN for data connections, which however has a habit of failing when roaming in my experience.