Talk:VertSMS

"secret" notepad

https://www.watchguard.com/help/docs/ssl/2/en-US/Content/FAQs/configure_smpp_faq.html

I am not part of Nokia, but I have worked with SMS and telecomms a lot, there are a couple of possibilities, but I haven't time right now to download and analyse your code.

When you send a text message, you may need to set the Destination and Source Type of Number and/or Numbering Plan Indicator in the SMS PDU. See https://www.watchguard.com/help/docs..._smpp_faq.html. Look for smpp-submit-dest-addr-ton and smpp-submit-dest-addr-npi

It's possible that right now that the Destination (and maybe Source) TON is not being set and picking up the default for the various providers, some of whom default to 1 (international) and some whom default to 4 (Subscriber Number). Alternatively, you may already be setting the TON and some operators are recognising and overriding the setting, some are not.

My guess is that it's just the TON that might need changing and the NPI is fine.

Another possibility is that when you send the message you send 00nnnnnnn instead of +nnnnnnnnn. IIRC, the + is the correct thing to send as it translates to "use international routing" in the switches. The 00 prefix does the same in most countries, but I don't think it's guaranteed, whereas + is. I am not 100% sure on the accuracy of this statement though.