A Private GSM Cell?
mr number two asks: "I live in the mountains and have poor GSM reception. I can buy an active repeater to boost signal strength in my home to good levels, but what I'd really like to do is have a private GSM picocell, such that at home I would be connected to my own PBX. Calls to my home phone number would ring through to my cell phone. I wouldn't have to worry about a home cordless phone (and 802.11 interference) and I'd have all my speed dialing / contacts info right there. There are many other benefits. Ignoring FCC licensing issues, is there a base station I can purchase which has a signalling interface that will interface to a small PBX?"
Everything is available for a price.
On the other hand, I might suggest searching for a solution that does not ignore the rules. Rules for communication systems are (for the most part) fairly sane. The avoid pesky things such as cross talk, interference, etc. But hey, this is Slash, who really cares about that kind of thing ;)
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