SKo says military hotlines to be opened up with NKo

The briefing on December 22nd announced the completion of construction work in the East and West Sea areas, with simultaneous cable connection work underway. The project aims to enhance communication between the North and South, improving travel convenience for citizens. Official opening is planned for next week, following discussions with the North. The briefing concluded with an emphasis on the benefits of the new communication system.

What is the timeline for the official opening of the new communication line?

What was mentioned about the collaboration with the northern side?