![]() ![]() Overall, the process is very simple as it was designed for users with basic VoIP skills so that they can simply ‘hop on’ and use it. At the same time, the quality of Internet connection was more than decent. Due to absence of SIP fine settings, there is no chance to experiment. Moreover, tests revealed a slight decrease in volume during the conversation as compared to mobile connection, as I was asked several times to repeat what I just said. In other words, you think that you are online but in reality your phone is offline and cannot receive incoming calls. Sometimes phones lose server registration and fail to notify their owners. However, it might be useful under particular circumstances. select the calling channel before every call: mobile connection or VoIP. The most inconvenient way in my opinion.In this case a separate field indicating a phone number for Internet calls is required for each contact from your Contacts. Should you need to call via mobile network, go to settings and enable another type of outgoing calls. In this case your phone will always call only via Internet channel. However, if during incoming calls you are not able to tell the difference between GSM and VoIP calls except for a tiny sign displayed in the upper right corner, then it means that calls are made in several ways: From now on you will be able to make calls via Internet alongside the standard calls via the SIM card. To be able to receive calls, you need to check ‘Receive incoming calls’ parameter, otherwise you will be able to make outgoing calls only.Īs soon as you save the settings, your phone will be registered on telephony provider’s server and your VoIP is up and running. You can go to advanced settings and enter proxy address, port number and transport type, if necessary. Everything is pretty simple, no extra hurdles. All you need to do is enter your login, password and server address and it is ready for use. You can set it up through the following menu path: Settings – Phone – Accounts. It is really easy to set it up and use it. I like it primarily because it is already inbuilt in the phone, so it works “out of the box”. For telephony purposes we have selected the popular European service Betamax, and, more precisely, one of its resellers – Webcalldirect and telephony corporate server Asterisk. We have selected three softphones for testing: Zoiper, CSIP Simple and inbuilt into Android SIP client, whose existence is still a mystery for many smartphone users. ![]() In this article I would like to tell you a little bit about the softphones (Android phones and tablets in this case). As of today, the majority of mobile operators provide VoIP service based on SIP technology that requires a subscriber to have a hardware or software IP phone (softphone). Thanks to ample opportunities and relatively low cost, introduction of VoIP in business, and subsequently in everyday life, is happening very quickly. Personally, I would give the second place to VoIP. Its significance in the modern world cannot be overestimated. Talking about Internet technologies that nowadays are simply irreplaceable in business, and often in everyday life, many would agree that email is number one in this list. How to use VoIP if computer or VoIP phone are not available? Your Android smartphone can help you in this endeavor. ![]()
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