How quickly can an issue be resolved if you are at home and something breaks? Is there a neighbor with free wifi? Do you have monitoring software that notifie

How quickly can an issue be resolved if you are at home and something breaks? Is there a neighbor with free wifi? Do you have monitoring software that notifies you somehow? Is anyone else "on call"? If all is going well at work and you aren't the one "on call" for outages, then maybe not. However, 97-98% uptime with 500,000 users sounds like a critical time in your company's growth. Are you taking any heat for the uptime issue? Who pays for it is a tough question. If it's for the good of the company, then I think they should. But, as CTO, I would look out for the company's best interest even if they are feeling cheap. In that case, what's the lowest cost/term way that you can cover the bases?