Mobile rollout
I have to set up new mobile phones for employees at work... Only the office I sit in has absolutely no mobile signal with the corporate carrier (Vodafone) - with my private carrier, Congstar on D-Netz, I get Edge in the office - which makes setting up and testing the phones awkward; trying to test the corporate E-Mail works when not on the Wi-Fi network means a trip outside the office.
It also makes configuring and testing mobile LTE hotspots difficult, there I have to traipse outside with the modem and a notebook to test it!