I've added two phone numbers, but only the first one works. Here's the serial output after listing the two added numbers and calling from the second one:
(list)
Console command:
+421907486xxx (Attila) (Y)
+36203309xxx (Stefan) (Y)
+421907486xxx (Attila) (Y)
Receiving data
Caller: +421907486xxx
I don't know you
Sending command: ATH
Sent. Waiting response
ATH
Receiving data
Unknown message:
NO CARRIER
OK
The hardware is an Arduino Nano (with an Atmega 328) and a SIM800L. I've tried Arduino IDE 1.8.8 (freshest) and 1.6.3 (similar release date as your code) as well, but it didn't work.
I've added two phone numbers, but only the first one works. Here's the serial output after listing the two added numbers and calling from the second one:
The hardware is an Arduino Nano (with an Atmega 328) and a SIM800L. I've tried Arduino IDE 1.8.8 (freshest) and 1.6.3 (similar release date as your code) as well, but it didn't work.