If I am near to the person I am calling to, what’s the routing? Will phone call “go” to my phone -> to the cell -> to the provider -> to come back in the same cell and then -> to the person I am calling to? or just remains in the nearest cell and so it’s something like: me-nearCell-otherPerson

Question

Curiosity. I didn’t study those things yet.

In: 2

Answer 1

The audio channel and signalling don’t always use the same route. A while the signalling channel will always go back to the provider to find out where to route the call I would be surprised If some networks cannot keep the audio local in the nearest cell. I.e. if both phones were on the same cell. But not 100% certain…