NTT DoCoMo and KDDI issue reminders that when dual SIM is used on iPhone, it is sometimes impossible to issue an emergency notification (110swap 118bank 119). It is reported that there is no similar problem with the Android terminal.
| 【ご注意】本現象は110番／118番／119番の緊急通報に関わるものになります。個人で状況を確認しようとしたり、問題の再現を試みたりすることはお控えください。 |
The reminders of the two companies are roughly the same, and in an environment where lines are used in multiple SIM card eSIM using dual SIM function, if a dedicated SIM line for data communication that cannot make voice calls is set to a line for "mobile data communication", sometimes messages cannot be sent to emergency agencies.
As a method of avoidance, a line used for "mobile data communication" can be sent to an emergency agency by setting a SIM line that can make voice calls.
At present, it is confirmed that the following 11 models have produced this reduction.
[19:10, September 10, 2021] the Internet Initiative posted information about the matter on its official blog. Please refer to another article for details.
[19:20, September 10, 2021] Notes on the matter were also posted on the UQ mobile website.
[11:30, September 12, 2021] Softbank Corp. and Rakuten Mobile also issued a notice on the case. Based on this, the title of the report on the debut was changed to "attention to the emergency notification by NTT DoCoMo and KDDI about the use of eSIM by iPhone" to "attention to the emergency notification by communication companies about the use of eSIM by iPhone".
