So this time, maintenance costs is free (per month 0 yen), further call charge of mobile phone each

So this time, maintenance costs is free (per month 0 yen), further call charge of mobile phone each other is "about 7 yen / minute", it will introduce the "Call back Call". In addition, by combining the IP phone, it can also be a call charge of mobile addressed to 4 yen / min. [Call use of back] to this cheap call method I use a callback service. Wiki excerpt callback, in circuit-switched telecommunications, after the notification and phone number to the called party from the calling side, once to open the communication line is a call method to continue the call by calling the caller beatties from the incoming side. Okay. Meaning I do not know. Also, it is slightly different nuance from the call-back referred to in the present article. beatties I say call back, you need a third party (callback server). Explanation is difficult, I suppose beatties as follows. Myself: A partner: B callback server: If you want the phone to V A B, will take a toll of A B, if the original. When this to take advantage of the call-back, you can be the toll of V A and V B. When the phone call back, first of all have a phone call to A from V. When A is received, this time I will make a phone call from V to B. When B is receiving, by the circuit switching of V side and connect the A and B. Because the B telephone number of A is notified, it does not notice the call by call back. This is the callback. [Callback of merit] this for what, whether to that Madorokkoshii? It is because the call charge is cheaper to intense manner. In addition, since it is possible to realize a transmission in the incoming beatties only, it can also be the cheap maintenance costs. You may Some people think "Why maintenance costs?". The reason for this is that, instead calling is expensive, because the maintenance costs exists telephone service called 0 yen. In other words, if you run it in "Japan SIM" and "prepaid mobile", the monthly basic charge is 0 yen (in the case of Japan SIM), also will be a strange situation that cheap call charges. And even you can include beatties that it is not an IP phone as the maximum beatties benefit "call back". Now, regardless of the line quality, it can be stable call. [Find callback lowest] beatties in order to use the "Call back", you will need to contract overseas service (Betamax system). The Betamax system services are provided as even 100 kinds in all the world. In comparison this all services, was looking for a place most cheap addressed to Japanese mobile phone. (You really want me for such comparison table, but omitted because it only would be buried most of the blog is in ....) As a result, mobile phone addressed to lowest service was "CheapVoip". Mobile addressed to: 3.571 / min fixed addressed to: 0.510 / min The fixed telephone addressed to free service there was a lot. In places famous it is, such as "VoipBuster" and "VoipStunt". Because it calls the two places destined for mobile from [fee applied to the callback "callback beatties server", the fee applied to the callback, will take 2 times the normal. In addition, as a connection fee, it takes about five yen once. Therefore, the cost of one minute call is as follows. beatties 3.571 2 + 5 円 = about 12 yen even this is enough of cheap, but it does not feel to discount it .... So, you think of when you have larger amount of phone. about 76 yen in 10 minutes, is about 434 yen in one hour. So confusing, as compared to mobile phones and G-Call of the carrier, and then to the list. When the service call charge 1 minute 10 minutes 30 minutes 1 hour CheapVoip 12 円 76 yen 230 yen 434 yen career 43 432 1,296 2,592 G-Call 20 円 200 600 1200 to call one hour, take the original 2592 yen call fee, it needs 434 yen if you use a callback. Indeed it is 1/6. In order to use the callback [method of using the callback], you typically use a dedicated app. However, this is a very easy to use is bad. (Rather than a bad usability, it is not made in Japan of phones.) So, I'll show you how to specify from the familiar beatties phone book, the other party directly. Because (anything OK as long as communication) mobile phones and smartphone (OK even Japan SIM) necessary thing and mobile phone just use the call, does not matter smartphone in Garake. If, if you intend to use the Japan SIM, you can prepare the SOFTBANK or DoCoMo (SIM unlock). It should be noted, is a case of obtaining a lower price, may choose DTI of SIM "ServersMan" a (467 yen) to the smartphone. beatties preparation First of all, we will contract the "CheapVoip" toll was the lowest price. Contract beatties method such as "VoipBuster", because it is exactly the same as other Betamax-based services, please refer to the following. The <(as well as such as VoipStunt) registration procedure of VoipBuster> smartphone side prepare call back in order to use efficiently, install the following apps. Following CSipSimple CSipSimple Betamax beatties plugin Sets and "CSipSimple" "CSipSimple Betamax plugin". I will check to Settings simple setting of "CSipSimple", "Android and integration." Check (You should now be able to call back from a normal phone book) to the "outbound only". (This is only used for call back)
setting of "CSipSimple Betamax plugin" Username: <ID of CheapVoip> Password: <CheapVoip password> Provider: cheapvoip.com From: <their mobile number> Access number: 81
Then, there is an incoming call to the mobile phone side rather than a smartphone. When it received in this, followed by will go to call the other party of the phone. If opponent delle to phone, it is a communication established (call state). [Verification of call quality] we will verify the quality and the delay time of the call-back call. This time of verification to record beatties "My voice audible to the other party" in the same way as up to now, at the same time, we measure the time lag (delay time) until it received from originated the voice. It is a playback callback call <original data of voice> (mobile mobile) service name sound quality delay time CheapVoip Play 845 ms expected PSTN ( ). It is no complaint with respect to sound quality. PSTN: IP phone in a normal telephone line but it is not, and try to measure the delay ... "?? To ... What this" is 845ms. It has been validated up to now, in a number of telephone line, it is the worst one. So PSTN, you can use even a place you do not want to radio waves of stability. However, delay time is the worst. This does not withstand practical use at best no matter how sound quality .... [Conclusion and Impressions] The following, "Japan