How to Keep Business Calls Running During Load Shedding
https://workplacelines.alderbrief.com/posts/how-to-keep-business-calls-running-during-load-shedding
To keep business calls running during load shedding, invest in a UPS or backup battery for your phone system and router. Keep a fully charged power bank handy for mobile phones, and set up call forwarding to mobiles if possible. Also, switch to cloud-based VoIP systems that reroute calls to your mobile network during outages. Regularly test your backup setup to avoid surprises during blackouts.