Sending calls to a cell phone is rather complicated on the SX200, it involves creating an extension and (probably) a new Class of Service, modifying device interconnect tables and system options, adding new system abbreviated dialing entries, remotely forwarding the phone created, and then setting it as the night 2 answer point. Not really something I would recommend attempting if you don't have intimate knowledge of the system... Probably something you should contact your vendor for.
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