The sp mode mail problem, that thing where addresses get changed, is a hot topic. However, I didn't really understand it just by reading the article, so I drew a picture while referring to the Technology Report [18] in the NTT DOCOMO Technical Journal Vol.3 No.1...
Further display sp mode email issueJust after exiting customs at Schiphol Airport, there is a store selling unlocked phones and SIM cards. I bought a prepaid SIM card from an MVNO called Ortel. €24.95=€9.95 (sim card) + €7.50 (phone charges) + €7.50 (other plans)…
Further display Dutch SIM – Ortel APN settings etc.
Mobile payments are actually quite popular in East Africa. The Safari.com SIM I used this time also uses it. It is provided as a SIM application. The communication protocol(?) they use is called USSD. It's a kind of secure SMS. It's strange that it's hardly used in Japan.
Further display safari.com M-PESA