I have used the RJ11 port to connect with the regular TM supplied phone. It does work but the modem will switch to 3G mode to make a voice call possible. However, the data speed will be compromised, slowing down considerably. It will switch back to LTE mode but I am not sure how long it will take to go to LTE. I would reboot the modem to get back to LTE mode. Based on testimony from the South African broadband forum the Huawei B593 will take more than 10 minutes to switch to LTE mode.

im currently having this problem..but my house is inside the coverage area, but just at the end of it, average 2-3mbps..

since buying new modem wont promise an adequate result for the price it tagged, i dont think i will use this plan..

but if you have the money, maybe you can try and help others like me who cant blindly invest on RM300-RM400 modem and at the end of the day, it make no difference..

sad life of people living outside coverage..