Categories
GSM IMS / VoLTE Mobile Networks

The Surprisingly Complicated World of SMS: Special Characters

A look at how characters are encoded in an SMS.

Categories
GSM IMS / VoLTE Mobile Networks

The Surprisingly Complicated World of SMS: Concatenated / Multipart SMS

Another deep dive into deceptively simple seeming functions to do with SMS.

Categories
5G SA Mobile Networks

SMS in 5GC

The first SMS was sent in 1993, and all these years later as 5G rolls out, we’re still supporting it.

Categories
EPC GSM IMS / VoLTE LTE Mobile Networks RFCs & Standards

The Surprisingly Complicated world of MO SMS in IMS/VoLTE

Short messaging can be anything but simple…

Categories
EPC EUTRAN GSM IMS / VoLTE LTE Mobile Networks

Sending SMS in Open5GS LTE Networks using the SGs Interface and OsmoMSC with SMSoS

Sending SMS over LTE using OsmoMSC and OsmoHLR and the SGs interface for SMSoS

Categories
EPC EUTRAN GSM LTE Mobile Networks

OsmoMSC and Open5GS MME – SGs Interface for CSCF / InterRAT Handover

Looking into the SGi interface for Circuit Switched Fallback in LTE to use GSM/UMTS networks for Calls & SMS

Categories
Australian Telco Security

SMS Security – Banks

The other day I got an SMS from my bank, one of the big 4 Australian Banks. BANKNAME Alert: Block placed on card ending in XXXX, for suspicious transaction at ‘THING NICK PURCHASED ONLINE’ for $29.00 at 13:56. If genuine, reply ‘Yes’. If Fraud, reply ‘No’. SMS from bank They’d detected possible fraud on my […]