DTAC international roaming SMS

[bubba1]

Anyone have any issues getting SMS messages from Thai banks while international roaming? I want to make sure I can get OTP messages. On DTAC in Thailand it looks like they are not coming from a regular phone number but some other type of service

[mtls2005]

This is going to be highly dependent on the bank(s) involved. And maybe the service provider. And maybe the target countries.

Can you share that detail?

A search like bangkok bank OTP site:www.thaivisa.com will yield some valuable information.

Some banks use Short-Code SMS (SCSMS) services (out-sourced to third-parties for bulk delivery, and low cost), which may, or may not transition across the global GSM system.

For standard SMSes on DTAC/Happy, assuming you have international roaming enabled ( *118*9# SEND ), have enough of a pre-paid balance and have a local signal, you should be able to receive and send SMSes. I do.

[mikeshov]

I 'm on DTAC and can receive SMS's with OTPs from Siam Bank in the UK with no problems. I always keep around 500 Baht on the phone and extend the validity of my number for as long as I can (up to 1 year is possible) before I leave Thailand.

[gandalf12]

They wont be coming from the standard numbers as they are relayed i.e. sent through a number of intermediate links before reaching you.

[Langsuan Man]

I have DTAC and bank with both SCB and Bangkok Bank and have never had a problem getting the One Time Passwords in the US via SMS . I just take my DTAC SIM and put it into my spare phone and just turn it on, when I need an OTP and then enter the OTP into the field required for online banking

[mtls2005]

They wont be coming from the standard numbers as they are relayed i.e. sent through a number of intermediate links before reaching you.

BBL and SCB appear to use bulk SCSMS services, which should transition the global GSM system and be delivered to a Thai SIM roaming in another country. But this assumes that you have international roaming enabled, sufficient balance, a local signal and the local roaming partner elects to pass on the SMS. The "sender" will not show as a "number", but rather just as a name (e.g. Bank-BBL). A "standard" SMS would show as coming from the originating number, and you could reply to the SMS.

This is what most verification systems use to deliver a code via SMS, say when you are installing and registering a mobile application.

Not that it matters in this case, but some VoIP service providers cannot handle all in-coming SCSMS.

I haven't used the mobile banking applications for BBL, or SCB, but am guessing those also require SMS OTP for transactions?