ASCII.jp 1 year Free is completed sequentially Rakuten Mobile, but still thinks how to use Rakuten Mobile conveniently

　Rakuten Mobile "Rakuten UN-Limit" started in April last year with a privilege of one year free from the contract.For those who have signed up immediately after the start, the free period will end at the end of last month.Even if it's not free, there are benefits such as 0 yen and all -you -can -talk for 1GB, and it is a waste to cancel immediately.Therefore, I thought about how to use it in the future.

With ESIM compatible iPhone, you can achieve "low cost + area of area + unlimited call" by combining Rakuten + IIJmio ESIM.

At the moment, the area problem is bigger than paid.

　One year after the start, the situation surrounding Rakuten Mobile has changed.The first line of the first line ends from the user you applied for in the early days, and if the communication amount exceeds 1GB, the billing of 1078 to 3278 yen a month will begin.

　On the other hand, the Rakuten line area, which was built on its own, is still expanding day by day.There are so many places that can be used outdoors in the downtown area, and the residential areas are gradually enriched, and I often hear the voices of the Rakuten line area at home.

Rakuten Mobile equipment.There are more compact base stations here and there than the three major carriers

　As a result, the opportunity to enjoy the service of unlimited data communication as the plan name of Rakuten Un-Limit is increasing.

　On the other hand, the area where the roaming connection to the au network has been completed is also expanding.Initially, except for the Rakuten line area, the "partner line area" roaming to the au network covers various places, and it was conveniently used up to 5GB, which is the upper limit of the partner line.However, the roaming connection has been terminated due to discussions between the two companies from the place where the Rakuten area is fulfilling, and it is often out of range in areas where the area is not expanded.

　No matter how much the Rakuten area has expanded, it is impossible to catch up with the level of the three major carriers in the first three major carriers, and there are holes in the area in small places such as the shadow of the building, and in the back of the building, outside the area.It is easy to become, and you can't make full use of the unlimited line.If you can't use data communication, it's still good, and you can't call an urgent phone if it's out of range.This is a problem.

If you connect to the net, you can make free calls RAKUTEN LINK Then, if you combine it with a docomo network, is it the strongest?

　As a matter of fact, it is troublesome to say that there are many out of range, and it is possible that this point alone is "unusable".However, there is how to use it.

　This is because Rakuten Mobile's voice call (SMS) basically uses the Rakuten Link app, but in Rakuten Link, it is possible to trust if smartphones are connected to Wi-Fi or other lines to the Internet. That's why.

"Rakuten Link" to realize unlimited calling with Rakuten Un-Limit

　If you can be connected to the Internet in some way, you can think of a phone call, and you will think one thing.If you are using a DSDV -compatible smartphone that can use two SIMs, you can prepare another appropriate SIM.Also, with relatively new iPhone (XS/XR or later) or Google Pixel (4 or later), another line can be added.

　For example, the new IIJMIO "Giga Plan", which was newly launched in April, expanded ESIM services.If the communication volume is 2GB a month, 440 yen and 8GB are 1100 yen.This is suitable for the second SIM to put in the iPhone.Giga Plan's service for ESIM is less out of service because it uses a docomo network.

　There are other services that can be used by ESIMs include SoftBank "LINEMO" and au "Povo", but the two are from 2728 yen per month with a communication volume of 20GB.Although it is expected to have the same effective speed as a normal SoftBank / au plan, it would be faster to contract with Linemo / Povo as the main line from the beginning (unlimited options are also available).

　On the other hand, the call of the Rakuten Link app has a weak point in terms of sound quality.VoLTE is common in calls between smartphones, and some may be used to calling with very clear sound quality.However, in the case of Rakuten Link, it is a pity that the sound quality is not as much as VoLTE.

If it is a combination with IIJMIO ESIM, it can be used in a large area of docomo and can call for unlimited calls.

　When combining the above-mentioned IIJmio gigaplan and Rakuten UN-LIMIT, it costs 660 yen per month if the IIJmio side is 4GB.If Rakuten UN-Limit is used only up to 1GB a month, it costs 0 yen, so it costs 660 yen a month for a total of 5GB, and all you can speak for domestic calls.Still, it is a smartphone that can be used in a large area of docomo.

　If there are many opportunities to be in the Rakuten area, Rakuten Un-Limit can use it at a stable speed of congestion time, so we signed Rakuten Un-Limit as the main and contract IIJmio for 2GB.It would be comfortable and practical to add 440 yen of IIJMIO to Rakuten Un-Limit's 0-3278 yen.

　If it is an iPhone in this way, it is possible to automatically switch between the two lines, so if you use the main use on the Rakuten side, the area, which is the largest weakness of Rakuten Un-Limit, is narrow, so you can use it unlimited call.And data communication can be used to the fullest.

The iPhone can set which one to prioritize data communication, and can switch automatically.

　Since Rakuten Un-Limit is also compatible with ESIM, Rakuten Un-Limit can be ESIM and IIJmio is possible on the physical SIM side, but in that case the monthly fee for IIJmio will increase, and the APN setting is set for IIJmio.The configuration profile is required and the setting becomes complicated.

In my environment, I couldn't immediately find an area where Rakuten Un-Limit was not available, including the roaming of au, so I turned off Rakuten Un-Limit SIM and tried to make only IIJmio entered.

IIJmio's data communication and Wi-Fi could make a phone call without any problems.