this might belong somewhere more like r/nostupidquestions, but how do landline phone signals get converted into wireless signals (in other words, how do landlines call cell phones)? Is that just another thing that cell towers do; like, do they just have landlines running into them and they convert the signals to wireless there?
In: Technology
Voice calls from a landline seem analogue and old, but behind the scenes they’re all digital now. In the phone company’s Central Office their hardware is converting your call into something compatible with, say, an office desk phone that uses a LAN port for its connection. Something like 20 to 50 customers might be on a single device that has 20 to 50 phone lines going in, and a network connection going out.
Your call will be delivered to the cell tower as data as well, probably using the same feed that gives it Internet access for your data plan. The digital data will make it to your phone where its CPU and speakers/microphone are responsible for its side of the call.
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