When Apple announced that their new iPhone XS Max was going to have dual-sim capability I was ecstatic. I finally moved my business line which is on Verizon to the eSIM. Last night I purchased a Simple Mobile SIM card from Best Buy and setup a personal line. I didn’t have much problems other than the activation taking a few hours.
Here is the issue I am having. I have two phone numbers which are VOIP lines that, after X amount of rings, forward the call to my Verizon phone number. I noticed this morning I was receiving voicemails with no missed calls. I immediately figured it was related to the dual-sim. I can fix this temporarily by either turning on airplane mode and then turning it off and or going into cellular settings and disabling my personal line and then turning it back on. This will fix the problem temporarily but will eventually start blocking calls that are forwarded from this VOIP line that I own.
I am assuming it is some kind of bug and hope it is not by design. The fact that I can fix it by disabling the line and re-enabling it leads me to believe that this is a bug and not by design.