[SeamusMacD]

Hello, first post for me on here.

I came across this post while troubleshooting an SMS issue with a Piranha sim I got recently and hope the experienced Piranha users on here will be able to help.

With the Piranha SIM installed, an unlocked Verizon iPhone 4S and an unlocked AT&T Nokia Lumia (8.1 version of OS) can receive but cannot send SMS messages. Piranha support have identified the problem as a failure to communicate with the correct Small Message Service Center.

To the Piranha users on here, what SMSC number does your phone use?

To check on iPhones:

Input *#5005*7672# with the keypad and press dial.


To check on Android:

Dial *#*#4636#*#* to open a testing menu. The SMSC # is under Phone Information. It's at the bottom, update or refresh to get the number to display.


To check on a Windows Phone:

The SMSC number will display under the first settings menu encountered when the messaging app is opened.


Background:

I got a Piranha-Mobile Sim recently to use during a family trip to Canada. SMS Out failed on phones that are working correctly and Piranha identified the problem as an incorrect Small Message Center Number in the SIM/phone. I had no success in getting the SMSC # ( +48790993080) they provided to stick and, after they were unsuccessful in updating the SIM OTA, they mailed a new sim with different assigned telephone numbers.

Before shipping, they verified that SMS IN and OUT worked. I inserted the new sim in a Nokia Lumia and SMS Out worked *once.* After that SMS stopped working correctly - sms can be received but not sent. The call records confirm one successful SMS Out on O2 in the UK and once on AT&T after I received it. Later attempts with the iPhone 4S and using T-Mobile on both phones were unsuccessful for SMS Out; SMS In does work on T-Mobile, however.

I've followed all their troubleshooting directions and confirmed to them that the phones being tested have no SMS issues when not using the Piranha sim. All attempts to input the SMSC # manually have failed - the number will not save correctly/permanently and reverts to +7 in both the iPhone 4S and in the Nokia Lumia. Usually after start up or after renewing the carrier connection with GET Connection, the Nokia Lumia will display a different SMSC # but cannot send an SMS with that number active and reverts to +7 as the # after a failed SMS send.

I reported the results to Piranha four days ago and I'm awaiting further contact.

Sorry for the long post - just wanted to provide enough information on what has been done already. Any suggestions re additional steps? Thanks!