However, the major families in the Cultivation Realm came up with a solution, which was to set up a communication station at one end of the Teleportation Array. So, they could directly connect with the mundane world's Teleportation Array station and then make a phone call from there.
If the Liu family members want to call Liu Lanxi, they would have to go to the Communication Station of the Teleportation Array to make the call.
Generally speaking, unless there's a serious matter at hand, they wouldn't go to the communication station to make a call, after all, it's a certain distance from their family.
The Cultivation Realm is vast, so vast that you could fly for months without knowing where you've arrived, let alone finding the end.
Liu Lanxi whispered to Mo Huasong, "My mother is calling, don't say anything."
"I understand, it's a call from my mother-in-law." Mo Huasong's nodded.
"You're talking nonsense." Liu Lanxi blushed and gave a shy glare at Mo Huasong.