ASCII.jp Now that the new rate plan is attracting attention, we dare to think about how to remain in the main plan of the three major carriers and use it at low cost.

　"AHAMO", "POVO", "LINEMO", a new fee plan for online specialty for 20GB a month for the three major carriers.While some people have already enjoyed the new rate plan, the grudge of those who did not apply well became a hot topic.In the first place, these plans are not the best for everyone.Various depending on how you use it.So, now, I thought about how to use the main plan of the three major carriers and use it comfortably for over 3,000 yen per month.

　Of course, how to introduce it is not the best answer for everyone.I want to keep using carrier emails, emphasize free calls between families, use mobile phones for children, enrich international roaming, and use cellular type Apple Watch.In the case of a person who does not.And use requires some knowledge.

This time, by combining the three major carrier -based plans and the IIJmio ESIM plan, we considered how to reduce the price while using the services in the main plan of the three major carriers.

IIJmio can use two lines on the ESIM plan that can use data communication for advantage

　The main introduction is to cover data communication with the IIJmio ESIM plan that started in April.In the recent iPhone after the iPhone XS / XR (including the new iPhone SE), and the models after Google's Pixel 4 or later, it can be used simultaneously in one unit in combination with the first SIM.。The first regular SIM is the main plan of the three major carriers, mainly for calling and arrival of the phone, and the other ESIM can be used relatively inexpensive by combining cheap data communication.

　As a specific monthly fee, docomo is a step -based "Gigalight" (officially "Gigalite 2" after October 2019), if there is a family discount of 3 or more, the communication volume of 1GB or less is 2178 yen per month.。If you add 1100 yen per month for IIJmio Giga Plan (8GB in ESIM) for data communication, you can use the main plan of docomo and various services (not in AHAMO) for 3278 yen per month.。If 8GB a month is not enough, there is an option of 15GB / 20GB a month, and even 20GB is 1650 yen per month, so it costs 3828 yen per month.

DOCOMO stage plan "Gigalite".If various discounts are applied up to 1GB per month, the price will be considerably reduced.

　In cases where there is no family discount, it is 4378 yen per month, combining Gigalite and 8GB of IIJmio ESIM.Both are higher than AHAMO (Ahamo also includes a flat rate up to 5 minutes at a time), but it is definitely cheaper than consuming 8GB with DOCOMO gigalight.

"Giga Plan", a new plan of IIJmio, started in April

　In IIJmio, the speed of data communication in congestion may be larger than AHAMO.However, the extreme slow is about 30 minutes in the latter half of the day of the day, and if the evening is a little slower, it may not be a problem.Also, the business time during the day is quite comfortable, and I have been using IIJmio's lines for a long time, but I have never felt any problems other than lunch break.

　If high -speed communication is needed during the time when the speed of IIJmio decreases, you can switch to the docomo side only at that time.If you forget it before switching while switching, there was a risk that the price of "Gigalite", which is the stage system, will rise without noticing it, but I will apply for the "Giga Plan Up State Options" which started in March this year.If you reach the upper limit set in advance, it will automatically apply, and there is no need to worry about the billing amount.

If you use the "Giga Plan upper limit setting option" added by DoCoMo, you can not use the communication volume more than the previously set upper limit.

　It can be said that the environment for the second SIM utilization by ESIM is now in place.

　If you want to use ESIM, there is also a Rakuten Mobile "Rakuten Un-Limit" besides IIJmio.It is near the end, but if you apply by April 7, it will be free for one year.Compared to IIJmio, which uses docomo networks, it is disadvantageous in the area, but it seems that it is not a bad option if it is a person who leads to Rakuten Mobile's radio waves in the range of action.

AU and Softbank basically can save the same

　In addition to DOCOMO's "Gigalite", au's "Pitat Plan 4G LTE" (new au Pitat Plan N) and SoftBank's "Mini Fit Plan +" are basically the same phase system, and by ESIM.The monthly cost can be reduced by combining with another data line.

　DOCOMO / au will not be 1100 yen discount without a family discount of 3 or more lines, but if SoftBank is contracted for a fixed line, it will be 1100 yen discount even if you use it alone.Even in services other than SoftBank, if you use a phone with "NURO Hikari", the range is wide, such as the target.You have to apply for a fixed line set yourself, so please check your own.

　However, the price after the monthly 1GB is different for three companies, and the au or Softbank is not equivalent to the option that automatically restricts in 1GB per month.Nevertheless, it can be restricted by the function of notifying by e -mail at a certain point or the function on the smartphone side at a certain point.

It is quite complicated to use ESIM as the second SIM.

　IIJmio's "Giga Plan" contract is not significant from other cheap SIMs.However, when incorporating ESIM into the terminal, it is easy to apply using a PC because the QR code is displayed and read.

The application itself is possible from online

I applied for the first day of April 1st, but ESIM was issued 3 minutes after completion.

　In addition, as a previous preparation, not only the smartphone I use is ESIM compatible, but also a terminal purchased from a carrier requires locking SIM.DOCOMO's cheap SIM is usually not necessary to unlock SIM on terminals purchased from docomo, but IIJmio's ESIM is a full MVNO, which is a unique SIM.Therefore, even a docomo machine is required to unlock the SIM.

　Then, apply for an ESIM plan with IIJmio, and after a while, log in from the link in the "Notice of Use" email that arrives after a while, the ESIM QR code will be displayed.

ESIM is read from "Add Mobile Communication Plan"

The QR code is displayed, so read it with the iPhone camera.

Once you read ESIM, just set it in order.

Select which line to use data communication

　All you have to do is set the setting itself in order, and set the addition ESIM to the side line, and the SIM you have used so far is OK if you set only the data communication as the main line.Whether or not to switch to mobile data communication is turned off if you frequently switch to the main line depending on where you use it.

　Normally, MVNO cheap SIMs like IIJmio require further installation of configuration profiles, but if you use IIJmio ESIM on your iPhone, you will be automatically set, so that you can communicate as soon as you read the ESIM. Become.

　I wrote a rough flow, but there are quite a lot of procedures.The setting method may be changed.In addition, since the setting method is different when the same operation is used with an Android machine such as the Pixel series, please check the official support information in any case.

The speed of IIJmio is not slow