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Internet connection with a data transfer speed (link) of 3 Mbps upload/download or higher. To ensure real-time communications, the following bandwidths are additionally required:
Telephony: 64 ~ 256kbps (depending on the codec used)
Video call: 720 ~ 2048 kbps (depending on the required video quality)
Network latency less than or equal to 150 milliseconds
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