We have the technology required to record, transmit and play high fidelity audio and video. Why are the phone calls’ quality still so bad as if we’re talking over walkie-talkies?
In other words, we definitely \*can\* have high quality phone calls. Why is it that the carriers (or whoever responsible for building the underlying infrastructure) choose to not make this improvement yet?
Edit: the question came up after finishing a call with my bank. I’m pretty sure the CS on the other end used a landline phone and the audio quality was no bueno. Maybe my impression on the phone calls’ quality can have some recency bias involved. So please correct me if phone call qualities aren’t that bad in your region or in your experience .
In: Technology
If you have a modern mobile calling another modern mobile, the call quality can be amazing. I call my wife on her google pixel 7 from my google pixel 8 we’re on the same network in the UK (an mvno called Giffgaff). Sometimes we use Meta’s *Whatsapp calling and that’s great too*
I don’t have the details handy but let’s say you are using a modern codec as detailed[ here](https://www.sip.us/blog/latest-news/what-is-the-best-codec-for-voip-and-how-to-find-it/) you’ll have a great call experience.
If the circuit can’t support the data rate, it drops back and back to the older codecs.
CS centres have various redundancy features and resilience elements configured in as a call is hopped around the providers internal cloud so say your call gets routed to a handler in India and the handler then puts you through to a help desk in the same metropolitan area as you, when the systems are configured badly that audio is still routing through India which won’t help if you are in Austin TX
CS telephony circuits are among the worst in the world.
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