Quote:
Originally Posted by MN Renovator
I've come across a VOIP unit where the battery probably had a displacement of about 8 oz or about the size of a coffee mug in total volume. I didn't check to see if it was a sealed lead-acid, NiCd, NiMH, or lithium ion and I've never seen the specs on how long they will run equipment but I imagine there's some FAQ somewhere on the performance.
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This is really interesting.
It got me thinking, that with telephone is such a vital link... I mean even cellphones, if they are charged up, and even if they are not provisioned... by law, they must be able to make a successful 911 call.
It seems to me that it is an oversight for VoIP phones to not have an internal battery such as you just described, so that emergency calls, such as 911 can be made in a power outage. Because power outages may easily accompany catastrophe such as a tornado, or large scale fire.
-AC