Why  GSM calls using pots [ 1 2 ] is crytal clear and clean when compared to 4G voice calls or 5G voice calls ? Thanks.

Copilot Answer

Good question! Let’s dive into the differences between GSM calls and 4G/5G voice calls:

1. Technology:

   • GSM (2G): GSM (Global System for Mobile Communications) is a second-generation technology. It uses circuit-switched technology for voice calls, which means a dedicated channel is allocated for each call.
   • 4G/5G (LTE/VoNR): 4G (LTE) and 5G (VoNR) use packet-switched technology, where data is broken into packets and transmitted over the network. Voice calls are treated as data packets.

2. Quality:

   • GSM: GSM calls are known for their crystal-clear quality because of the dedicated channels. The sound is consistent and reliable.
   • 4G/5G: While 4G and 5G promise faster data speeds, voice calls are not their primary focus. However, with improvements to the IMS (IP Multimedia Subsystem) and 5G core networks, call quality has improved. VoNR (Voice over New Radio) offers better voice quality and lower latency compared to older technologies¹².

3. Latency:

   • GSM: Low latency due to dedicated channels.
   • 4G/5G: Slightly higher latency due to packet-switched architecture.

4. Preparation:

   • VoNR (5G): Implementing VoNR requires significant preparation by carriers. It’s not as simple as flipping a switch. Carriers need to ensure seamless transition from LTE to 5G for voice calls¹.

In summary, while GSM calls remain clear due to dedicated channels, 4G/5G voice calls are catching up with better quality and lower latency. As networks evolve, we’ll likely see further improvements in voice technology. 😊📞¹³.