What is a cashlane system? Google was not my friend on this.
If the old cable is expendable, then I would actually slice it open completely and look inside. Who knows what sort of hocus-pocus they might have brewed up in order to make the cable completely proprietary [and act as a hardware "key"]. It sounds like the cable is not expendable, however...
BTW, the RJ9 plug is used
only on high performance digital doorbells.
See this post. Jim
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Speaking from a secure undisclosed location.
