https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619274#M43570 <P>"They also recommend using VoLTE which is not compatible with xz1." - The XZ1 single SIM model firmware includes a lot of modem configuration files need for using VoLTE. Which telecom provider do you use? Vodafone?</P> Thu, 04 Apr 2019 18:47:46 GMT XZ1-User 2019-04-04T18:47:46Z https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619271#M43567 <DIV>Good day everyone! Sony subscriber from the Philippines here.</DIV><DIV>Please help me.&nbsp;</DIV><DIV>About four months ago, I noticed that I was unable to receive and make calls when in 4G.</DIV><DIV>But if I switched my preferred network type to 3G, the call issue would resolve.</DIV><DIV>However I need to use 4G for better internet connection.</DIV><DIV>This inconvenience is also associated with total loss of network connection for few minutes whenever I manually switched network preference from 4G to 3G, to be able to make and receive calls.&nbsp;</DIV><DIV>&nbsp;</DIV><DIV>I purchased Sony Xperia XZ1 just fine until recently it become inconvenient to use for me.&nbsp;</DIV><DIV>&nbsp;</DIV><DIV>Is there any way to resolve this issue?</DIV><DIV>Tried already the troubleshoot suggestions from Sony Mobile.&nbsp;</DIV><DIV>They also recommend using VoLTE which is not compatible with xz1.</DIV><DIV>&nbsp;</DIV><DIV>Thank You, Sony subscribers.&nbsp;</DIV> Wed, 28 Nov 2018 13:29:32 GMT https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619271#M43567 Graycells 2018-11-28T13:29:32Z https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619272#M43568 <P>I have the same problem. This morning I had<SPAN>&nbsp;switched into 4G and didnt realized someone cant call me or I cant make outgoing call with it. Search for the solution here and saw your post. So I switched back into 3G and those calls are able now. Wonder why it happened though.</SPAN></P> Thu, 29 Nov 2018 09:56:57 GMT https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619272#M43568 Aifaasmudge14 2018-11-29T09:56:57Z https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619273#M43569 <P>its because of VoLTE is not available in the Philippines.&nbsp;</P> Tue, 04 Dec 2018 09:11:00 GMT https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619273#M43569 Jhero 2018-12-04T09:11:00Z https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619274#M43570 <P>"They also recommend using VoLTE which is not compatible with xz1." - The XZ1 single SIM model firmware includes a lot of modem configuration files need for using VoLTE. Which telecom provider do you use? Vodafone?</P> Thu, 04 Apr 2019 18:47:46 GMT https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619274#M43570 XZ1-User 2019-04-04T18:47:46Z https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619275#M43571 <P>I am living in Malaysia and Im using one of the main telco in this country. I dont think it is because of the VoLTE or anything, because it was once perfectly working until that day that I cant receive calls or make any calls..</P> Fri, 05 Apr 2019 02:02:57 GMT https://community.sony.si/t5/xz-series/sony-xz1-unable-to-receive-and-make-calls-when-in-4g/m-p/3619275#M43571 Aifaasmudge14 2019-04-05T02:02:57Z