I checked with Rakuten Mobile the problem of "I can't receive calls on the Rakuten line iPhone" -Itmedia Mobile

　The number of voices on the Internet saying, "I can't receive calls on Rakuten Mobile iPhone."If you use the iPhone on the Rakuten Mobile line, the call will not be displayed even if the other party makes a phone call, and it will be switched to an answering machine.When searching on Twitter etc. for "Rakuten Mobile incoming calls," many people say that it is not possible to receive calls.

　According to the Sankei Shimbun report, the Ministry of Internal Affairs and Communications called Rakuten Mobile to investigate and resolve the cause.

　Rakuten Mobile has changed the specifications of the "Rakuten Link" app for iOS since July 2021, and the phone that came to the iPhone was not the Rakuten Link app, but the iOS standard "telephone" app.。Some say that this specification change is the cause of the incoming call.By the way, I operate Rakuten Mobile in ESIM with "iPhone 13 Pro", and also install the Rakuten Link app, but when I sent it to the Rakuten line from the docomo line or au line, I was able to arrive without any problems.

　What is happening on Rakuten Mobile's iPhone?Confirmed with the company's public relations.

――Do you know events that cannot be incoming?Also, is the only thing that occurs on the iPhone, does it not occur in Android?

Rakuten Mobile, we deeply apologize for the inconvenience and inconvenience for our customers.We are informed of how to deal with users and how to use it because some customers are receiving inquiries.As for the occurrence event, we are investigating the usage of the customer, so we will refrain from answering the status of the terminal OS at this time.

――In my iPhone, such a problem has not occurred, but do you know what conditions occur?

Rakuten Mobile We are investigating while checking the use of customers.

――It was changed to the specifications that arrived with a standard phone app in the “Rakuten Link” for iOS from July, but is this one of the causes?

It is not due to the specification change of "Rakuten Link" for Rakuten Mobile iOS.

――What kind of inquiries have been made from users and how do you guide them?

Some customers have received voices such as Rakuten Mobile voice calls that are difficult to connect.Currently, while asking about the usage of the service such as the customer radio environment, we are informing you how to deal with it on the website.

――Isn't this matter on the support page?

Rakuten Mobile Website has a support page.

――It has been reported that the Ministry of Internal Affairs and Communications has requested the cause of the cause.

Rakuten Mobile has been working closely with the Ministry of Internal Affairs and Communications, but we are currently investigating this event, so we will refrain from answering individual reports.

　It turns out that Rakuten Mobile side has grasped that some users cannot receive incoming calls on the iPhone, but the conditions and causes are "under investigation", which is a drastic solution.It doesn't seem to be.

　In addition, the support page entitled "How to solve the problem of data communication" has a phenomenon such as "slow the Internet or is difficult to connect to voice calls, and re-turn the power of the main unit or Wi-Fi.Please try ON / OFF in the in -flight mode. "However, looking at the situation where incoming calls are still occurring, it seems that this method is not easy to solve.

　Needless to say, the bug that the call cannot be incoming is fatal when using a smartphone (mobile phone).I want Rakuten Mobile to disclose details and causes as soon as possible.

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